Ohsine update and BE page builder plugin


I bought themeforest in 2015. We ended up losing our daughter so I let everything go for a while. I am now back to try and get back to work and rebuild my website. I se there was an update just on the 15th of this month.

-I can not get the update to install
-Anytime I install the BE page builder plugin with my original theme instal (without new update) it takes down my whole website so I can’t even edit anything after, uninstall anything after, etc.

Please help me get this installed so I can build my site and get back to work. I would greatly appreciate it

Thank you