phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7c26030f558a0952c4cca55aeaa426d8' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7c26030f558a0952c4cca55aeaa426d8', -1, 1771052486, 1771052486, '12610e51', -8, 0, 0)

Line : 187
File : sessions.php