SUPER difference in the site (for me).
Just for your knowledge...... I had to reload 5-8 times in a row for a few days.... just to navigate to ANY page. Now, I've had one error in 48 hours. If I have the error again, I'll screenshot it and log the time for you.
Moving forward, you can always have your host look at your Error Log and they should be able to determine what caused the issue. If anyone gets errors here, just log the time it happened and what the error said..... If you know how to take a screenshot, do that.
Once you gather a week's worth of proof of errors (if you KNOW the errors aren't your software), you can present your case to your host and demand they fix it. Otherwise, I'd move to a different host if they won't work with ya.
For what it's worth, I've been checking in on things and will continue to do so every morning and before bed till you get this all lined out. Happy to give ya my phone number if you get to needing help with this transition.