help pls

I'm sorry, but an uncaught exception occurred.

While loading <'Image' u'mod_assets/thumbs/unknown.png'>:
  File "game/script-ch30.rpy", line 2141, in script call
  File "game/event-handler.rpy", line 3119, in script call
  File "game/zz_selector.rpy", line 4061, in script call
  File "game/zz_selector.rpy", line 3909, in script call
  File "game/zz_selector.rpy", line 3726, in script
  File "game/zz_selector.rpy", line 3748, in <module>
  File "game/zz_selector.rpy", line 3141, in render
  File "game/zz_selector.rpy", line 2608, in _render_bottom_frame
  File "game/zz_selector.rpy", line 2628, in _render_bottom_frame_piece
IOError: Couldn't find file 'mod_assets/thumbs/unknown.png'.

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "game/script-ch30.rpy", line 2141, in script call
  File "game/event-handler.rpy", line 3119, in script call
  File "game/zz_selector.rpy", line 4061, in script call
  File "game/zz_selector.rpy", line 3909, in script call
  File "game/zz_selector.rpy", line 3726, in script
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/ast.py", line 814, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/python.py", line 1719, in py_exec_bytecode
    exec bytecode in globals, locals
  File "game/zz_selector.rpy", line 3748, in <module>
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/exports.py", line 1147, in say
    who(what, interact=interact)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/character.py", line 877, in __call__
    self.do_display(who, what, cb_args=self.cb_args, **display_args)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/character.py", line 716, in do_display
    **display_args)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/character.py", line 508, in display_say
    rv = renpy.ui.interact(mouse='say', type=type, roll_forward=roll_forward)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/ui.py", line 285, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/core.py", line 2526, in interact
    repeat, rv = self.interact_core(preloads=preloads, trans_pause=trans_pause, **kwargs)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/core.py", line 2883, in interact_core
    self.draw_screen(root_widget, fullscreen_video, (not fullscreen_video) or video_frame_drawn)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/core.py", line 1955, in draw_screen
    renpy.config.screen_height,
  File "renpy/display/render.pyx", line 427, in renpy.display.render.render_screen (gen/renpy.display.render.c:6806)
    rv = render(root, width, height, 0, 0)
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 693, in render
    surf = render(child, width, height, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 693, in render
    surf = render(child, width, height, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 693, in render
    surf = render(child, width, height, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/screen.py", line 623, in render
    child = renpy.display.render.render(self.child, w, h, st, at)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 693, in render
    surf = render(child, width, height, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 1081, in render
    st, at)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 693, in render
    surf = render(child, width, height, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 895, in render
    surf = render(d, width - x, rh, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/viewport.py", line 259, in render
    surf = renpy.display.render.render(self.child, child_width, child_height, st, at)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/layout.py", line 895, in render
    surf = render(d, width - x, rh, cst, cat)
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "renpy/display/accelerator.pyx", line 108, in renpy.display.accelerator.transform_render (gen/renpy.display.accelerator.c:2027)
    cr = render(child, widtho, heighto, st - self.child_st_base, at)
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "game/zz_selector.rpy", line 3141, in render
  File "game/zz_selector.rpy", line 2608, in _render_bottom_frame
  File "game/zz_selector.rpy", line 2628, in _render_bottom_frame_piece
  File "renpy/display/render.pyx", line 110, in renpy.display.render.render (gen/renpy.display.render.c:3440)
    cpdef render(d, object widtho, object heighto, double st, double at):
  File "renpy/display/render.pyx", line 196, in renpy.display.render.render (gen/renpy.display.render.c:2978)
    rv = d.render(widtho, heighto, st, at)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/im.py", line 473, in render
    im = cache.get(self)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/im.py", line 200, in get
    surf = image.load()
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/display/im.py", line 524, in load
    surf = renpy.display.pgrender.load_image(renpy.loader.load(self.filename), self.filename)
  File "/Users/socks/Desktop/Games/DDLC.app/Contents/Resources/autorun/renpy/loader.py", line 543, in load
    raise IOError("Couldn't find file '%s'." % name)
IOError: Couldn't find file 'mod_assets/thumbs/unknown.png'.

Darwin-21.6.0-x86_64-i386-64bit
Ren'Py 6.99.12.4.2187
Monika After Story 0.12.15