Can anyone tell me what this is and how I can fix this? 
@Christian0924, this error indicates that the MSSQL instance is out of storage. Have you checked the available storage on your root BES server? Also, have you checked the MSSQL instance configuration to ensure that the BFEnterprise database can “auto grow” as indicated in the error message you posted?
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Another question is what version of SQL are you using. If you are using SQL Express you may have hit the DB size cap.
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