Vantage Gui permission to read datainfo

Document ID : KB000112271
Last Modified Date : 28/08/2018
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For an unknown reason I have the following message (lack of read authorization on data info) . I don't know where is this database and what to do.
The TR_Admin.MDB database is corrupted.
The database looks as if it were empty although its size is over 100 MB.
Our recommendation is to recreate the TR_ADMIN.MDB database by renaming or deleting it and then running all "collector" scheduled tasks in Windows Client(WC). This way WC will download the trend data from hosts again. The download is likely to take some time with respect to the size of the corrupted TR_Admin.mdb
The other way is to restore an old Trend Mdb which contains valid data and the scheduler will then restart immediately.