Errors while compiling to HTML5

I compiled Friday Night Funkin’ (Psych Engine) to HTML5 and it gave me this:
Called from ? line 1
Called from CommandLineTools.hx line 1895
Called from CommandLineTools.hx line 22
Called from a C function
Called from CommandLineTools.hx line 126
Called from CommandLineTools.hx line 641
Called from lime/tools/PlatformTarget.hx line 98
Called from HTML5Platform.hx line 425
Uncaught exception - Invalid field access : ascender

i dont think psych engine is supposed to run on html5