# Plan
1. run the `UPDATE `52x_Modules` SET `AppliedDBRevisions` = '' WHERE `Name` = 'Custom';` to forget last executed deployment scripts
2. change to `modules/custom/install/project_upgrades.sql` file to look like this:
```
# r1: Initial Project Task (#TASK_ID)
SELECT FirstName FROM `52x_Users`;
# some comment above error
ERROR1 ERROR2 ERROR3
SELECT LastName FROM `52x_Users`;
# some comment below error
```
3. login to Admin Console
4. go to {nav Tools > System Tools} section
5. use the `Deploy` button
6. confirm, that:
* SQLs after `ERROR1 ERROR2 ERROR3` line wasn't shown
* error wasn't logged into {nav Logs & Reports > System Log} section
7. get the value of the `LogUniqueId` field from any record of the `52x_SystemLog` database table
8. in the `/index.php` file add `$application->deleteLog(LOG_UNIQUE_ID_HERE)` after `$application->Init();` line
9. access changed `/index.php` file from web browser
10. confirm, that log record was deleted