add findTransactions limit

[huhn511]

Description of change

Add troubleshooting for findTransactions.

Type of change

• Enhancement (a non-breaking change which adds new content)

Change checklist

Add an x to the boxes that are relevant to your changes, and delete any items that are not.

• [x] I have followed the contribution guidelines for this project
• [x] I have performed a self-review of my changes