I play at a local church sometimes, and they use ableton for their click tracks and loops. They've had SO many issues with it. It has randomly died mid-perform

I play at a local church sometimes, and they use ableton for their click tracks and loops. They've had SO many issues with it. It has randomly died mid-performance, the tempo click has completely gone off the rails mid-performance, and the loops got transposed once into a completely different key mid-performance. I use a 2012 MBP stuck on High Sierra. It has occasional issues when I record, but nowhere near the amount of issues that we experience at the church. I want to upgrade badly, but I really don't want to deal with those kind of issues.