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Dear Erwin Domantay:
Good day! Thank you for posting to Microsoft Community. We are happy to help you
Based on your description, we understand that you got the error message when you uploaded a package on Marketplace offers thru Microsoft Partner Center. Since our forum mainly supports problems with Office 365 applications, Please understand that this query is outside of our support boundaries.
For you to be assisted properly, please visite this website Microsoft supported products on Q&A | Microsoft Learn; I am sure that our experts from that team can address your query effectively and accurately.
Thank you for your cooperation and understanding. Please do not hesitate to post your queries in Microsoft Community and we will always do our best to assist you!
Sincerely,
Tin | Microsoft Community Moderator