we designed a website with dokuwiki: http://www.seemannschaft.co.at/dokuwiki
. It worked perfectly well, but three or four days ago the pictures weren't displayed anymore and it was not possible to download files available on the site. There was a warning about an incompatible Captcha Action Plugin and in the Plugin Menu there was the possibility to re-install the plugin (maybe a mistake). However, after that the pictures and the downloads worked again, but all is displayed in plain HTML without any style (even the "dokuwiki" template: http://www.seemannschaft.co.at/dokuwiki
DokuWiki version: Release 2014-09-29c "Hrun"
PHP version 7.1.9
Using the W3C CSS Validation Servis this errors are displayed:
No style sheet found
Fatal error: Uncaught Error:  operator not supported for strings in /home/.sites/94/site2395/web/dokuwiki/lib/exe/css.php:170
#0 /home/.sites/94/site2395/web/dokuwiki/lib/exe/css.php(143): css_parseless('@ini_wiki_width...')
#1 /home/.sites/94/site2395/web/dokuwiki/lib/exe/css.php(18): css_out()
thrown in /home/.sites/94/site2395/web/dokuwiki/lib/exe/css.php on line 170
Does anybody know how to treat this issue?
Thanks for any help,