I encountered an issue regarding the Azure Data Factory scheduled trigger stopped after the subscription cancellation.

The following steps can restart your scheduled trigger.

First, you need to go to Azure portal.

Serach for data factory and go to your data factory.

Click on Launch studio.

Go to Manage.

Go to Source control -> Git configuration. Disconnect the configuration.

Go to Triggers. Start all the scheduled triggers.

Go to Source control -> Git configuration again. Re-configure Git repository.

After successfully following these steps your schedule triggers will start working again.