QB Issue Resolution:

If it’s been more than a year, Intuit has deleted your file.  If it’s been less than a year, try calling Intuit.  No one here can access your account.

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Resolution for Issue 'restore quickbooks file' available: Yes (Solved).
Source: Intuit Community forum.

restore quickbooks file: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for calling Intuit
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Error Recovery for calling Intuit [Canada]
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