phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './newklub31/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 ('b5f9a5f7bd35495a6f6527967f0012d5', -1, 1472086458, 1472086458, '36c63ed9', -4, 0, 0)

Line : 187
File : sessions.php