Thread:Project:Support desk/Site very slow and resets. Error message always the same. At a total loss. Help needed

Site has been very very slow 15-25 seconds. Sometimes the site resets. This is the message I have been getting in the error log virtually every day since 13 May when trying to work in the site. This is my third try no responses. Does anyone have any idea


 * [31-May-2012 15:07:38] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:10:24] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:12:25] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:12:53] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:13:22] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:13:56] "" is not a valid magic word for "wc_note_section_tag"
 * [31-May-2012 15:14:35] "" is not a valid magic word for "wc_note_section_tag"


 * MediaWiki 	1.19.0
 * PHP 	5.2.17 (cgi)
 * MySQL 	5.0.91mm-log