Greetings, cricla. 

I'm here provide information regarding the error you've encountered. However, I'll need to clarify some details about this.
 

May I know from where you've imported the transactions? Is it from another bank or another online payment system? I would also appreciate a screenshot for visual reference of the issue you encountered. 

This way, I'll be able to assist and provide you with accurate resolutions.

I'll wait for your response. Take care!