I am currently updating translate.pkp.sfu.ca. The database migration is proving more time-consuming than I thought: Weblate is updating its internal schema in what is apparently a slow process. I have no ETA as of 11:19am PST, but I don’t expect it will last until EOD.
Edit: Appears to be done now, 11:30am. Version 4.18.2, feel free to let me know directly if there are issues.