QB Issue Resolution:

QBO data handling capability for reporting is not adequate, if there is more than 5K records it times out and reports that you have too much data.  You will have to do a journal report in date range segments, like Jan-Feb, Mar-Apr, etc etc.
How many months you can span per report is a guessing game since the report can not deal with more than 5K transactions.

Resolution for Issue 'Date range is too long when running calendar year GL. Could this really be the case that Quickbooks online can’t run a calendar year GL?' available: Yes (Solved).
Source: Intuit Community forum.

Date range is too long when running calendar year GL. Could this really be the case that Quickbooks online can’t run a calendar year GL?: 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 journal report
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Error Recovery for journal report [Canada]
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