Hello,

I'm quite new to the moderation/administration aspects of a forum/website, and would like to solve the problem going on with the one I participate in. A roleplaying site called Star Wars Epics 2.0, and it has been unavailable for almost a week (Server IP address could not be found message on multiple computers using both Windows 10 and Mac High Sierra os, multiple web browsers and search engines). I would much appreciate it if someone could point me in the right direction to solve these issues.

Thank you for your time.

Are you the webmaster of the site?
Sounds like some issue with the DNS configuration, or the webhost.

I'm staff/moderator, but I didn't set the site up.

Ok, you'll need to get whoever set it up to look into it. If they've disappeared, they've probably stopped doing something they need to be doing, like maintaining the domain name properly.

Thank you for your help and time.

Interesting. Site was back Saturday morning, was able to post one message, but tried again maybe two hours later when critical error occurs:
This is an error that has been elevated to critical error status because it occurred during the primary error mechanism reporting system itself (possibly due to it occurring within the standard output framework). It may be masking a secondary error that occurred before this, but was never output - if so, it is likely strongly related to this one, thus fixing this will fix the other.
Unfortunately a query has failed [SELECT t.*,l.*,p.*,p.id AS p_id,t.id as t_id,p2.p_post AS p_post_first,p2.p_post__text_parsed AS p_post_first__text_parsed,p2.p_post__source_user AS p_post_first__source_user FROM crt7_f_topics t LEFT JOIN crt7_f_read_logs l ON (t.id=l_topic_id AND l_member_id=16) JOIN crt7_f_posts p ON (p.id=t.t_cache_last_post_id) LEFT JOIN crt7_f_posts p2 ON p2.id=t.t_cache_first_post_id WHERE t_pt_from=16 GROUP BY t.id UNION SELECT t.*,l.*,p.*,p.id AS p_id,t.id as t_id,p2.p_post AS p_post_first,p2.p_post__text_parsed AS p_post_first__text_parsed,p2.p_post__source_user AS p_post_first__source_user FROM crt7_f_topics t LEFT JOIN crt7_f_read_logs l ON (t.id=l_topic_id AND l_member_id=16) JOIN crt7_f_posts p ON (p.id=t.t_cache_last_post_id) LEFT JOIN crt7_f_posts p2 ON p2.id=t.t_cache_first_post_id WHERE t_pt_to=16 GROUP BY t.id UNION SELECT t.*,l.*,p.*,p.id AS p_id,t.id as t_id,p2.p_post AS p_post_first,p2.p_post__text_parsed AS p_post_first__text_parsed,p2.p_post__source_user AS p_post_first__source_user FROM crt7_f_topics t LEFT JOIN crt7_f_special_pt_access i ON (i.s_topic_id=t.id) LEFT JOIN crt7_f_read_logs l ON (t.id=l_topic_id AND l_member_id=16) JOIN crt7_f_posts p ON (p.id=t.t_cache_last_post_id) LEFT JOIN crt7_f_posts p2 ON p2.id=t.t_cache_first_post_id WHERE i.s_member_id=16 GROUP BY t.id ORDER BY t_cache_last_time DESC LIMIT 5] [Can't create/write to file '/tmp/#sql_1e71_0.MAI' (Errcode: 28 "No space left on device")] (version: 10.0.24, PHP version: 5.4.45, URL: /ocportal/forum/index.php?page=forumview)

Right, they're either out of disk quota or literally out of disk space on the server.