phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forums_ourchurch_com/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8cac82adec4f8b75fe2aa0bfc4a805d7', -1, 1461972902, 1461972902, '6b1425d4', 1, 0, 0)

Line : 187
File : sessions.php