I’d need to see what’s going on. But console might be a good bet, or just go through each one and see what’s going on in it.
If it is a bad workflow/formula, then you should be able, to select the “Run without workflows and formulas” option and it should work, without crashing.
When fetching a large amount of data through the API, especially when fetching it multiple times using a workflow, issues may arise. if you share the page which crashes the editor, it would be helpful for debugging purposes. This could include a screenshot of the page and the API and workflow used in that page