select max(vi_id) as max_vi_id from g4_visit

145 : Table '.\pyungchon\g4_visit' is marked as crashed and should be repaired

error file : /home/acbc/home.php
Warning: Unknown: open(../data/session\sess_45c39fe1341da30816bd933d6799a21a, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (../data/session) in Unknown on line 0