Backup Error/Warning in Windows Plesk

Getting Warning/Errors always in Windows Plesk.

Not all the data from C:\Program Files (x86)\Plesk\/var/modules/advisor/ was backed up successfully: Unable to list directory "C:\Program Files (x86)\Plesk\\var\modules\advisor\cache\api-cli\0fea6a13c52b4d47\25368f24b045ca84\38a865804f8fdcb6\57cd99682e939275\4893f1eb4d42b7dd\c9423fa776090857\2adcc8bf23e9c159". boost::filesystem::status: Access is denied: "C:\Program Files...

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