Open Chart of Accounts.  On the far right, click on the pencil/edit icon.  The number and name fields should appear in boxes in which you can edit them.  Make change, click Save.

Resolution for 'appear in boxes issue: 'How can I change the name of a bank account in QB?' available: Yes.

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

For more information about resolving issues related to appear in boxes in Quickbooks/QBO or to get support for the issue 'How can I change the name of a bank account in QB?', click the link below: