1. After I Installed the Extension, the Store Gives an Error or Blank Page:
- Change the owner of the extracted extension files to the web server user and set 775 permissions on them.
- Clear the store cache and try again
2. How to Clear Your Cache:
- After installing or uninstalling extensions, it is recommended to clear your cache. It is more preferable to flush your Magento store cache by deleting all the content in /var/cache/.
- You can clear it via Back end -> System -> Cache Management: select all cache types, then choose the Refresh action and click the Submit button.
Don’t forget to re-login after both these procedures.
3. How to Make a Database Backup:
- Before you make any changes, it is recommended that you backup your data first. In Magento, you can use a native backup tool in Admin Panel -> System -> Tools -> Backups.
- Click the Database Backup button - the tool is now copying the data from your store’s database to your local database. The Magento backup file appears in /var/backup/ after the procedure.
4. How to Enable Error and Exception Logging in Magento:
- By default, Magento does not register messages about errors and exceptions; so if something bad happens, you won’t even know.
- To turn on the logging, you can navigate to System -> Configuration -> Developer -> Log Settings and set the Enabled option to Yes.
- Don’t forget to set full access permissions (777) to the following folder: /var/log, since that is the place where those log files are stored.
5. How to Re-Index Your Data:
- In order to re-index product catalog data, go to System -> Index Management.
- Select all elements, choose the Reindex Data action and click the Submit button. It is not necessary to re-login to complete the operation.