JHtml: :jquery not supported. File not found.

After installing Solidres on a joomla 2.5 got this error.
Somehow I missed J3 label.
Tried removing all folders related to solidres. No result.
Tried removing jos_sr_* entries from DB. No result.

Is there a chance of undoing the installation?

Make sure that you delete all related records in table #__extensions as well.

I can not delete records in mysql

I solved the issue by restoring the site. (My hosting provider makes backups automaticly, very pleased)

Because of foreign key contraints, these tables must be removed in a correct order.

Or just select them and click drop, then ignore the error and just doing that again and again until all tables are removed.