“Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgSystemJ2Store has a deprecated constructor in / home / storage / 9/10 / a1 / idaam2 / public_html / plugins / system / j2store / j2store .php on line 18 ”
I have the same problem. I cannot update the plugin since I also get an error when I login in the administration panel and nothing is working. The problem is that mu host is using PHP 7.1.27 but the quickstart was with 5.6.25. Unfortunately I cannot use any older version of PHP. Is there an update of the quickstart using a newer PHP availble or a way to fix this error?