i experienced slow search when i login as editor since one week; i get the following error “DB Error: MySQL server has gone away” two to three times within the last week when i try to search for an article.
today the error is persistent; and any search when i logged in as an editor returns this error “DB Error: MySQL server has gone away”. also if i try to click the archive articles as an editor i get the same error; if i try to click the "in editing: articles i get the error some times.
note: we did upgrade from 2.3.8 to 2.4.8 since 21 September 2017. we get at the time of upgrade the following error “• A database error has occurred: Table ‘moanassar1.article_event_log’ doesn’t exist”. but it dose not affect any thing except when searching using the general search at the site level for visitors we get “404 Not Found”; bu other than that every thing was going ok since 21 September 2017.