error fx

terminating with uncaught exception of type Botan::Invalid_Argument: base64_decode: invalid base64 character '$'
/proc/self/maps:
40146000-402db000 rwxp 00000000 00:00 0
40645000-40655000 rwxp 00000000 00:00 0
4084f000-408ef000 rwxp 00000000 00:00 0
40bfa000-40cca000 rwxp 00000000 00:00 0
40ec4000-41097000 rwxp 00000000 00:00 0
41f87000-42087000 rwxp 00000000 00:00 0
549a4b1c000-549a4b24000 rw-p 00000000 00:00 0
66ee6100000-66ee6180000 rw-p 00000000 00:00 0
8d93cd9b000-8d93ce00000 ---p 00000000 00:00 0
8d93ce00000-8d93ce03000 rw-p 00000000 00:00 0
8d93ce03000-8d93ce04000 ---p 00000000 00:00 0
8d93ce04000-8d93ce7f000 r-xp 00000000 00:00 0
8d93ce7f000-8d944d9b000 ---p 00000000 00:00 0
12fcf5b00000-12fcf5b80000 rw-p 00000000 00:00 0
18105c900000-18105c903000 rw-p 00000000 00:00 0
18105c903000-18105c980000 r--p 00000000 00:00 0
1b0b1af80000-1b0b1af83000 rw-p 00000000 00:00 0
25473bd80000-25473be00000 rw-p 00000000 00:00 0
3481a5200000-3481a522f000 rw-p 00000000 00:00 0
7f29b1ff0000-7f29b2070000 rw-p 00000000 00:00 0
7f29b2074000-7f29b20f4000 rw-p 00000000 00:00 0
7f29b20f8000-7f29b2178000 rw-p 00000000 00:00 0
7f29b217b000-7f29b225c000 rw-p 00000000 00:00 0
7f29b22c0000-7f29b2340000 rw-p 00000000 00:00 0
7f29b2344000-7f29b23c4000 rw-p 00000000 00:00 0
Memory around native instruction pointer (0x7f29c2fc421f):
0x7f29c2fc420f 00 00 b8 0e 00 00 00 31 d2 bf 02 00 00 00 0f 05 .......1........
0x7f29c2fc421f c3 48 63 ff 50 b8 24 00 00 00 0f 05 48 89 c7 e8 .Hc.P.$.....H...
0x7f29c2fc422f a0 a2 fd ff 5a c3 48 63 ff 50 48 63 f6 b8 3e 00 ....Z.Hc.PHc..>.
0x7f29c2fc423f 00 00 0f 05 48 89 c7 e8 88 a2 fd ff 5a c3 85 ff ....H.......Z...

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================