Hello @Teresa24486,
For Clearing Audit Logs can you please try the following steps
1. Navigate to https://make.powerapps.com
2. Click on Gear Icon at the Top then select Advance settings
3. Select Settings --> then Select Auditing --> Then select Audit Log Management
4. Select the Log which you want to delete

If you want to Clear Trace logs
The do the following steps
1. Navigate to https://make.powerapps.com
2. Click Settings at the top
3. Select Advance Settings
4. Select System Jobs
5. Click More Actions --> Select Bulk Delete --> Select Look For as Traces --> Then Click Next to Delete all items

Kindly make sure, you have enabled Auditing for the Entities which is needed

and Respective Fields too to Avoid Storage Increase

Thats it 🙂
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