I have a multi store magento web project. There I need to specify the categories for each and every store views in catalog --> manage categories. It was working fine, but from today itself suddenly it stopped working.
I can edit the categories, if the store view is "All store views".
If I switch it to any other store, such as store1, I can't make any change.
I have unchecked "default value tab", then if I choose Is Active --> NO, the default please wait loader will appear, and after some time the page throws me an error,
SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded; try restarting transaction.
I am attaching a screenshot here
Why is it so??? Any one can help me?