Someone must have accidentally inactivated the parent account of those credit cards. Should it happen to you just reverse the inactivation of the parent account. Then, you will be able to activate all the current cc accounts and inactivate the non-current cc accounts.

Resolution for 'appears inactive issue: 'credit card appears inactive in chart of accounts' available: Yes.

The appears inactive 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 appears inactive issue yourself by looking for a resolution described in the article. If it is a complex appears inactive issue or you are unable to solve the issue, you may contact us by clicking here or by using other appears inactive support options.

For more information about resolving issues related to appears inactive in Quickbooks/QBO or to get support for the issue 'credit card appears inactive in chart of accounts', click the link below: