Tonight I noticed that when on PHP 7.1 I couldn't use ?tp=1 and when I went to Templates I couldn't look at the Layout
When on PHP 7.0 and error on Maxamum here is what I got
Deprecated: Non-static method Joomla\CMS\Application\SiteApplication::getMenu() should not be called statically in /home/cosquare/public_html/coloradosquaredance/templates/t3_bs3_blank/local/tpls/blocks/header-sub.php on line 23
Deprecated: Non-static method Joomla\CMS\Application\CMSApplication::getMenu() should not be called statically in /home/cosquare/public_html/coloradosquaredance/libraries/src/Application/SiteApplication.php on line 275
Notice: Undefined variable: this in /home/cosquare/public_html/coloradosquaredance/libraries/src/Application/CMSApplication.php on line 369
Notice: Only variables should be assigned by reference in /home/cosquare/public_html/coloradosquaredance/templates/t3_bs3_blank/local/tpls/blocks/header-sub.php on line 23
I don't know if this helps but when I turned of the header I was able to pull up the page but I still wasn't able to get to the Layout.