Dear Intern7,
Good day!
Thanks for your feedback.
I’m glad to hear that you can sen e-mail now.
As for the adobe pdf merge function you mentioned, I have also done a survey, you can try to log out of your account first and then log back in to see the results, shared by users in this way to fix the problem.
At the same time, this error is mainly provided by Adobe, and the application is not created by Microsoft. If the above suggestions don't work for you, For you to be assisted properly, please reach out to Acrobat - Adobe Community; 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