What to do if phpcms updates column cache error 500

What to do if phpcms updates column cache error 500?

Solution to the 500 error problem in phpcms update column cache

The following are the specific steps

1. First of all, this problem is in the database table, so log in to phpmyadmin in the space to manage the database table

2. Execute the sql statement: SELECT * FROM `v9_category` WHERE catid=parentid (note that v9_ is the table prefix, remember to change it to your own table prefix )

3. Under normal circumstances, this search cannot find the record. If the record is found, it means there is a problem with the record.

4. The solution is to change the value of parentid to 0. Can.

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