I tried making an edit to the master page HTML file and I guess I made a mistake. I uploaded the HTML file to the master page gallery and now I can't access any part of the SharePoint site. Whenever I try to load any part of the site it says
"An error occurred during translation of your HTML master page. For more information, please navigate to the master page by clicking the preview button in the Master Page Gallery or directly typing its URL."
I can't use PowerShell because we aren't allowed to run scripts on these systems. Is there any way to change the master page to a different one so that I can upload a non-broken version of my master page?
siteurl/_layouts/15/ChangeSiteMasterPage.aspx
and change