Hi @ZsVhun-6095 , welcome to Q&A forum!
What version of SharePoint are you using? We are currently providing help on SharePoint on the Q&A forum, so from the perspective of SharePoint, it may be due to the use of the MAP function, the browser requirement is IE10 and above.
Reference:
Map a network drive to a SharePoint library
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You could also repost a thread with "Office-VBA-dev" tag, then you will get professional advice from the VBA team.
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