You're welcome. Well, if nothing bad or no unforseen circumstances ever happened, I think normally it should be able to run 24 hours every day continuously without having much problem. However, in order to help ensure a more smoother performance of your vps in the long run, still it is recommended to restart your vps on any weekend that you are available to do so. Remember, it's all your money that matters. If anything goes wrong with your vps operations or your vps performance slows down or effectiveness could possibly decrease over time because of never or seldom do any restarting at all, then your money could be at risks too, simple as that.
As for myfxbook, yes you could still link it with your MT4 accounts, just that you cannot use EA options and limited to Auto update options which would be slower in updating your current results. As for MT5 accounts, the only option that myfxbook offers is the EA option (no auto-update option at all). Therefore, you cannot use this vps for linking any MT5 accounts with myfxbook. However, the good news is, there is an alternative to Myfxbook and it's called "FXblue" which allows auto update option for linking to MT5 accounts. In short, you can use FXblue instead of Myfxbook if you wish to.
Alright that's all for now. Take good care, be safe and God bless