A link to @albersweb‘s awesome solution:
Resolution for 'Community Solutions issue: 'Upgrade to QuickBooks Pro 2018 not without problems' available: Yes.
The Community Solutions 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 Community Solutions issue yourself by looking for a resolution described in the article. If it is a complex Community Solutions issue or you are unable to solve the issue, you may contact us by clicking here or by using other Community Solutions support options.
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