error while setting permission

[Migrated From Jforum.net]

I was setting permission for the group users.

when i checked the box saying "Set Users' Role to follow the Group * "
i came across with the following error.

"
An error has ocurred. For detailed stack trace, please see the page's source code.
Unknown table 'jforum_roles' in MULTI DELETE
"

i found that 'jforum_roles' exists in the database. I am using jforum 2.1

[originally posted on jforum.net by blutopaz_stein]

[Migrated From Jforum.net]

Copy the file "mysql_41.sql" over "mysql.sql" (WEB-INF/config/database/mysql)

Rafael
[originally posted on jforum.net by Rafael Steil]