I have used this command "mysqlcheck -r -u mysqlusername -p databasename"
It's showing all are ok
except this two tables

Error : Incorrect information in file: './XXXXXX/contenttype.frm'
error : Corrupt
XXXXXX.cpsession
note : The storage engine for the table doesn't support repair

What to do now ? i have repaired contenttype in phpmyadmin even though no use

help me