Quickbooks>check for updates, there was a patch released this week regarding El Capitan.
Resolution for 'checkupdates issue: 'Crash Catcher will not go away' available: Yes.
The checkupdates 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 checkupdates issue yourself by looking for a resolution described in the article. If it is a complex checkupdates issue or you are unable to solve the issue, you may contact us by clicking here or by using other checkupdates support options.
For more information about resolving issues related to checkupdates in Quickbooks/QBO or to get support for the issue 'Crash Catcher will not go away', click the link below: