Database error in vBulletin 3.5.1:

Invalid SQL:

				SELECT
				IF(votenum >= 2, votenum, 0) AS numbvote, IF(votenum >= 2 AND votenum != 0, votetotal / votenum, 0) AS voteavg,
				thread.threadid, thread.title, thread.replycount, postusername, postuserid, thread.dateline AS postdateline, IF(views <= thread.replycount, thread.replycount+1, views) AS views, thread.lastposter, thread.lastpost, pollid
				, thread.iconid AS threadiconid, iconpath AS threadiconpath, post.pagetext AS preview
				FROM thread as thread
				 LEFT JOIN icon AS icon ON (icon.iconid = thread.iconid) LEFT JOIN post AS post ON (post.postid = thread.firstpostid)LEFT JOIN deletionlog AS deletionlog ON (thread.threadid = deletionlog.primaryid AND type = 'thread')
				WHERE open != 10 AND thread.visible = 1
				
				AND thread.forumid IN(844,102,771,693,770,103,411,413,414,415,416,417,418,419,420,421,422,423,424,412,542,425,830,845,840,842,837,834,835,846,831,832,838,847,836,833,839,101,593,852,695,104,843,226,696,227,230,229,228,758,767,634,697,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,698,282,285,286,287,288,289,291,293,294,295,296,290,292,297,283,284,666,818,744,745,798,667,669,743,819,569,712,703,704,705,706,707,708,709,710,711,713,714,715,716,717,718,720,721,722,723,724,725,726,820,841,816,650,671,672,673,674,4,821,5,318,321,322,323,331,328,326,327,699,678,12,13,734,10,369,370,371,727,822,782,781,764,765,119,471,358,360,637,675,204,357,612,356,580,581,579,9,8,456,457,458,459,450,451,742,7,6,388,390,622,391,389,792,14,549,730,15,17,19,772,107,109,108,110,111,642,794,668,795,848,364,849,512,33,462,34,625,626,627,35,37,521,522,523,38,39,40,41,42,600,601,604,605,603,43,124,44,566,564,565,567,563,598,45,544,545,616,546,617,115,125,461,562,46,587,589,640,800,801,799,802,803,804,805,806,588,114,47,48,49,50,51,619,620,618,52,53,54,55,56,555,20,21,126,117,22,23,628,24,25,26,118,27,28,11,376,377,378,380,379,385,381,382,383,386,384,810,811,57,200,202,491,519,492,606,702,494,493,201,679,430,106,506,509,504,508,733,507,505,98,440,441,442,127,132,651,759,762,780,784,656,172,128,663,787,657,761,159,791,649,677,644,676,766,638,610,685,99,498,495,503,496,497,502,501,500,499,431,206,701,530,483,531,532,533,534,535,536,609,486,537,487,538,488,489,61,680,62,613,615,614,755,63,121,64,66,738,741,739,740,67,68,123,122,611,554,69,70,113,660,681,317,477,490,478,479,480,481,368,590,591,592,372,374,375,65,3,682,540,72,362,662,361,363,661,365,392,658,641,855,856,858,857,757,120,452,453,470,454,455,683,817,74,352,349,348,350,351,353,354,367,347,346,345,75,337,338,339,340,341,343,342,403,344,402,76,393,394,395,396,397,398,399,207,639,652,659,777,786,790,746,776,774,735,779,655,208,737,754,646,736,647,654,747,778,624,336,788,645,684,71,216,220,210,215,700,404,221,222,214,223,212,219,209,211,213,217,218,460,73,472,473,474,475,476,1,687,78,79,82,88,89,688,429,437,81,86,809,807,808,689,427,329,203,80,623,83,84,85,406,599,407,558,408,410,409,366,87,77,196,756,90,825,690,92,574,751,752,753,93,572,570,573,748,749,750,571,691,91,94,96,692,95,575,576,577,578,432,826,433,434,828,198,445,446,443,444,435,436,547,829,665,359,812,813,814)
				
				AND deletionlog.primaryid IS NULL
				ORDER BY lastpost DESC
				LIMIT 5;

MySQL Error  : Lost connection to MySQL server during query
Error Number : 2013
Date         : Saturday, November 21st 2009 @ 08:34:01 PM
Script       : http://www.familycorner.com/forums/showthread.php3?t=25725
Referrer     : 
IP Address   : 38.107.191.98
Username     : Unregistered
Classname    : vB_DatabaseDatabase error in vBulletin 3.5.1:

Invalid SQL:

					UPDATE session
					SET lastactivity = 1258864440, location = '/forums/showthread.php3?t=25725', incalendar = 0, badlocation = 0
					WHERE sessionhash = 'f9b872f56593604617f23a2b693432c4';

MySQL Error  : MySQL server has gone away
Error Number : 2006
Date         : Saturday, November 21st 2009 @ 08:34:01 PM
Script       : http://www.familycorner.com/forums/showthread.php3?t=25725
Referrer     : 
IP Address   : 38.107.191.98
Username     : Unregistered
Classname    : vB_Database