i've been using the plugin for a few weeks with no problems. all of a sudden, it is now generating the following php errors that crashed the site.
PHP Warning: stripos() [function.stripos]: Offset not contained in string in ... wp-dtree-30/wp-dtree-build.php on line 92,
that error is followed by,
The timeout specified has expired: ap_content_length_filter: apr_bucket_read() failed
p.s. i have not added any other code so i don't think there are other plugins, etc. causing the problem.