QB Issue Resolution:
Have you tried using an incognito window? If not, I’d suggest using one. Then, if it works, let’s clear the cache. A browser that has too much cache can cause unusual behavior. So I’d recommend clearing them regularly.
If the same thing happens, you can use other browsers as an alternative way to access your account. I’d suggest Google Chrome, Mozilla Firefox, or Microsoft Edge.
Resolution for Issue 'Once I login, I can’t open anything?' available: Yes (Solved).
Source: Intuit Community forum.
Once I login, I can’t open anything?: 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 Google Chrome
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Error Recovery for Google Chrome [Canada]
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