After a couple of updates, we were able to reactivate the Jetpack plugin yesterday and it seems to be working okay. It had been disabled for several weeks because it was causing problems with comments. The old Like button was also disabled for the same reason. The old Like button still isn’t working so we’ve enabled a new Like button that is part of Jetpack. Hopefully, there won’t be any problems, but if there are we will disable the plugin once again.