Same problem here. After updating the plugin I also get just an error warnung and can’t login anymore – as I need STB to guide my visitors to my topic pages I cannot just deactivate it.
I already tried chmod to 755/777 as well as chown to www-data what exactly didn’t change anything.
Any advices? Thanks in advance!
Meanwhile I gave up and wait for the developers fixing that problem.
Just a short hack to regain control over your dashboard:
1. Goto FTP and open the file stb-admin-class.php in dir /wp-content/plugins/wp-special-textboxes/ with an code editor.
2. Search for this line (should be in line 80):
private function checkThemesFolder($dir) {
Now after global $wp_filesystem; insert a new line containing /*;
3. Search for this line (should now be on line 98):
return $out;
After this line add a new line containing */.
4. Save stb-admin-class.php.
5. Reload.
What have we done? We just commented out the function causing problems. For the moment we don’t need this function, but it may mean that you can’t add new styles and such atm. It isn’t the bugfix but a short hack for the moment until developers pop up and solve the real problem.
Thanks for the workaround. I had actually reverted to the previous version while I wait for an answer but I may try this to check out the new features. 🙂