Error cancelling migration of a framework

When you cancel migrating of a framework you get this redirect error.

Dashboard / ▶︎ Site administration / ▶︎ Competencies / ▶︎ Migrate frameworks
Migrate frameworks
You should really redirect before you start page output
line 970 of /lib/outputrenderers.php: call to debugging()
line 2817 of /lib/weblib.php: call to core_renderer->redirect_message()
line 46 of /admin/tool/lpmigrate/frameworks.php: call to redirect()
× This page should automatically redirect. If nothing is happening please use the continue link below.
(Continue)