Error!!

Query:
Error: DB Error: unknown error
Debug info: INSERT INTO tracked_actions (tracked_action_id,user_id,request_url,action,request_user_id,request_entity_id,post_data,date_created,date_updated) VALUES (NULL,NULL,'/',NULL,NULL,NULL,'',1216921901,1216921901) [nativecode=145 ** Table './lift_renewablenys/tracked_actions' is marked as crashed and should be repaired]

At:

      line 840, file: /usr/share/php/DB/common.php
      database.execute("0", Array[9])
     line 159, file: /home/www-data/lift-renewablenys/0.5-2/include/subsystems/Database.class.php
     db_mysql.autoexecute("tracked_actions", Array[9], "1", "tracked_action_id = ")
    line 264, file: /home/www-data/lift-renewablenys/0.5-2/include/factories/Factory.class.php
    database.autoexecute("tracked_actions", Array[9], "1", "tracked_action_id = ")
   line 65, file: /home/www-data/lift-renewablenys/0.5-2/include/controllers/TrackedActionsController.class.php
   trackedactionfactory.save(Object:trackedaction)
  line 156, file: /home/www-data/lift-renewablenys/0.5-2/include/subsystems/System.class.php
  trackedactionscontroller.record()
 line 207, file: /home/www-data/lift-renewablenys/0.5-2/include/subsystems/System.class.php
 system.recordaction()
line 9, file: /home/www-data/lift-renewablenys/0.5-2/index.php
system.execute()