« MODx Parse Error »

MODx encountered the following error while attempting to parse the requested resource:
« Execution of a query to the database failed - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND tv.id = tvcv.tmplvarid GROUP BY tvc' at line 12 »
      SQL: SELECT MIN(CONCAT(SUBSTRING(tvcv.value,7,4),'-',SUBSTRING(tvcv.value,4,2),'-',SUBSTRING(tvcv.value,1,2))) AS startDate FROM `cvm_www_modx0961`.`modx09_site_tmplvar_contentvalues` AS tvcv, `cvm_www_modx0961`.`modx09_site_tmplvars` AS tv, `cvm_www_modx0961`.`modx09_site_content` AS sc WHERE tv.name = 'EasyEvents_Start' AND tvcv.contentid = sc.id AND sc.parent IN () AND tv.id = tvcv.tmplvarid GROUP BY tvcv.tmplvarid
      [Copy SQL to ClipBoard]
 
Parser timing
  MySQL: 0.0023 s(3 Requests)
  PHP: 0.1522 s 
  Total: 0.1546 s