Executing the code removed the "software error" message, but now it's back to displaying the directories like before.. :S
Index of /board/ Name Last Modified Size Type Parent Directory/ - Directory css/ 2017-Feb-27 22:44:11 - Directory extras/ 1980-Jan-01 00:00:00 - Directory icons/ 2005-Feb-23 23:15:06 - Directory include/ 2017-Feb-27 22:44:11 - Directory mode_image/ 2006-Jul-08 02:08:34 - Directory mode_message/ 2006-Jul-08 02:07:36 - Directory res/ 2004-Oct-06 20:22:40 - Directory src/ 2005-Feb-26 19:26:34 - Directory thumb/ 2005-Feb-26 19:26:38 - Directory admin.pl 2009-Apr-16 18:26:09 12.4K application/octet-stream captcha.pl 2006-May-17 00:12:50 7.6K application/octet-stream config.pl 2017-Feb-27 22:45:07 12.2K application/octet-stream config_defaults.pl 2017-Feb-27 22:44:11 7.8K application/octet-stream example.htaccess 2006-May-17 00:13:44 0.5K application/octet-stream init_done 2017-Feb-27 22:44:13 0.0K application/octet-stream kareha.ico 2004-Sep-14 16:19:10 0.8K application/octet-stream kareha.js 2006-May-17 00:13:12 6.0K text/javascript kareha.pl 2007-Jan-28 14:22:04 31.2K application/octet-stream spam.txt 2009-Apr-16 18:07:41 5.5K text/plain templates.pl 2017-Feb-27 22:44:11 16.6K application/octet-stream wakautils.pl 2009-Apr-16 18:33:05 31.3K application/octet-stream zeroconv.pl 2017-Feb-27 22:44:11 1.8K application/octet-stream