This error generally occured when you don't have access of that file over network or in connection string, it unable to reach the destination file. Talk to your network administrator.
For better suggestion on issues related with microsoft office access fix have a look to this thread: https://www.fixtoolbox.com/accessfix.html

Hello,
Each user has a default database. When you connect to computer that is running Microsoft SQL Server, and you do not specify a login database, the default database is used. To avoid the error try this app -https://www.sqlserverrepairtoolbox.com/

It repairs data types, views, procedures, tables, keys, indexes and other objects

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