n init done.
/input/tex/extensions/boldsymbol.js:1 Failed to load resource: the server responded with a status of 404 ()
ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1 Uncaught DOMException: Failed to execute 'splitText' on 'Text': The offset 514 is larger than the Text node's length.
    at c.split (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:284133)
    at e.l.updateDocument (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:342718)
    at r.N.updateDocument (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:187413)
    at r.f.updateDocument (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:339953)
    at r.updateDocument (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:275821)
    at Object.renderDoc (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:182406)
    at v.renderDoc (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:182629)
    at r.N.render (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:184731)
    at Object.S.MathJax.typeset (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1:636652)
    at HTMLBodyElement.<anonymous> (https://rss.nchagnet.com/ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax-config.js&t=js&1622620423:10:13)
ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1 Uncaught (in promise) Error: Can't load "https://rss.nchagnet.com/input/tex/extensions/boldsymbol.js"
    at new l (ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1)
    at d.failed (ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1)
    at HTMLScriptElement.t.onerror (ext.php?f=xExtension-LatexSupport%2Fstatic%2Fmathjax%2Ftex-chtml.js&t=js&1622620423:1)
MathJax_Zero.woff:1 Failed to load resource: the server responded with a status of 404 ()
MathJax_Main-Regular.woff:1 Failed to load resource: the server responded with a status of 404 ()
MathJax_Math-Italic.woff:1 Failed to load r