Warning:  [mysql error 144] Table '.\fotoalbum\piwigo_sessions' is marked as crashed and last (automatic?) repair failed

SELECT data
  FROM piwigo_sessions
  WHERE id = '1277b9gdapvnip0seer7f1toduja14'
; in C:\xampwb\htdocs\fotoalbum\include\dblayer\functions_mysqli.inc.php on line 847

Warning: session_start(): Failed to read session data: user (path: C:\xampwb\tmp) in C:\xampwb\htdocs\fotoalbum\include\common.inc.php on line 150

Fatal error: Uncaught Error: Call to a member function fetch_assoc() on bool in C:\xampwb\htdocs\fotoalbum\include\dblayer\functions_mysqli.inc.php:211 Stack trace: #0 C:\xampwb\htdocs\fotoalbum\include\functions_session.inc.php(133): pwg_db_fetch_assoc(false) #1 [internal function]: pwg_session_read('b9gdapvnip0seer...') #2 C:\xampwb\htdocs\fotoalbum\include\common.inc.php(150): session_start() #3 C:\xampwb\htdocs\fotoalbum\picture.php(10): include_once('C:\\xampwb\\htdoc...') #4 {main} thrown in C:\xampwb\htdocs\fotoalbum\include\dblayer\functions_mysqli.inc.php on line 211