Have to say I've never had any problem with the new fishel site, on either my laptop or my phone. Just looked at it again now on both, and it loaded fine... maybe I just have the right combination of ad and tracker blockers to make it work ¯\_(ツ)_/¯
If it's only the fixture list you want, you can just Google "motherwell fixtures" -- gives you a nice list that even includes links to the YouTube highlights of previous games. (Would be nice if the fishel site did that too.)
There's also the SPFL page at https://spfl.co.uk/clubs/motherwell/fixtures (but I do have to turn of some my blockers to get that to load). In the past I've also used https://fixtur.es/en/team/motherwell to add them directly to my calendar, but it didn't seem to cope with rescheduled matches very well, even though it claims it does.