Two tries in xampp, with gavick quickstart news template and with my site:
1) Gavick quickstart news template:
Installed from scratch, Php7, joomla 3.7.0
- Template settings as 4.jpg: first and second load ok
With template settings as 3.jpg:
First page load ok, Second page load (see 5.jpg) and apache error log:
[Thu May 04 10:35:32.036350 2017] [php7:notice] [pid 4316:tid 1560] [client ::1:8091] PHP Notice: Only variables should be assigned by reference in C:\\xampp\\htdocs\\gavick\\templates\\gk_news\\lib\\framework\\helper.cache.php on line 102
[Thu May 04 10:35:47.092350 2017] [php7:notice] [pid 4316:tid 1584] [client ::1:8108] PHP Notice: Only variables should be assigned by reference in C:\\xampp\\htdocs\\gavick\\templates\\gk_news\\lib\\framework\\helper.cache.php on line 102
[Thu May 04 10:35:51.092350 2017] [php7:notice] [pid 4316:tid 1584] [client ::1:8108] PHP Notice: Only variables should be assigned by reference in C:\\xampp\\htdocs\\gavick\\templates\\gk_news\\lib\\framework\\helper.cache.php on line 102, referer:
http://localhost/gavick/[Thu May 04 10:36:42.993350 2017] [php7:notice] [pid 4316:tid 1544] [client ::1:8132] PHP Notice: Only variables should be assigned by reference in C:\\xampp\\htdocs\\gavick\\templates\\gk_news\\lib\\framework\\helper.cache.php on line 102, referer:
http://localhost/gavick/2) My site:all site reinstalled (php 7 + joomla 3.6.5, joomla cache: file, progressive)
update to joomla 3.7.0, ok
first page load ok, second page load -> blank page
Template advanced settings (3.jpg)
Changing the settings (4.jpg) disabling all, first and second page load is ok.