Hi,
Please help me to resolve this problem. We encounter since August 23, 2023.
The Solution I tried but didn't fix the issue:
1. Reinstall Crystal, QB, QODBC
2. https://support.flexquarters.com/esupport/index.php?/Knowledgebase/Article/View/3074
3. https://quickbooks.intuit.com/learn-support/en-us/help-article/web-integration/fix-error-quickbooks-application-revoked/L6Y849bKg_US_en_US