数据库错误，求助

Warning in ./libraries/dbi/DBIMysqli.php#204
mysqli_query(): (HY000/29): File './mysql-bin.000197' not found (Errcode: 2)

Backtrace

./libraries/dbi/DBIMysqli.php#204: mysqli_query(
,
string 'SHOW BINLOG EVENTS LIMIT 0, 25',
integer 0,
)
./libraries/DatabaseInterface.php#267: PMA\libraries\dbi\DBIMysqli->realQuery(
string 'SHOW BINLOG EVENTS LIMIT 0, 25',
,
integer 0,
)
./libraries/DatabaseInterface.php#116: PMA\libraries\DatabaseInterface->tryQuery(
string 'SHOW BINLOG EVENTS LIMIT 0, 25',
NULL,
integer 0,
boolean true,
)
./libraries/controllers/server/ServerBinlogController.php#121: PMA\libraries\DatabaseInterface->query(string 'SHOW BINLOG EVENTS LIMIT 0, 25')
./libraries/controllers/server/ServerBinlogController.php#73: PMA\libraries\controllers\server\ServerBinlogController->_getLogInfo(array)
./server_binlog.php#32: PMA\libraries\controllers\server\ServerBinlogController->indexAction()

重启就会变好，第二天又会错误，打不开网站