Clear the cache and cookies. Then log back in. https://www.artesanibookkeeping.com/clearing-the-cache-and-cookies-quickbooks-online/
Resolution for 'cookies issue: 'Can anyone else login to QBO? I’ve not been able to for 2 days.' available: Yes.
The cookies 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 cookies issue yourself by looking for a resolution described in the article. If it is a complex cookies issue or you are unable to solve the issue, you may contact us by clicking here or by using other cookies support options.
For more information about resolving issues related to cookies in Quickbooks/QBO or to get support for the issue 'Can anyone else login to QBO? I’ve not been able to for 2 days.', click the link below: