Steps to reproduce the issue

• website is created with CMS Joomla 3
• upgrade joomla 3.6
• testing with Safari browser 10.0.1
• url for testing : https://bethyeshoua.org
• url for testing : http://www.bethyeshoua.org

Expected result

every links are ok with this browser safari but many links are broken with others browsers

Actual result

the testing is with 2 others browsers
if using browser Chrome on MAC OS = BROKEN LINKS

if using browser firefox on MAC OS = BROKEN LINKS

if using browser INTERNET EXPLORER on WINDOWS OS : ALL LINKS ARE OK

1st example on main pages
https://bethyeshoua.org
testing payments with PayPal Plugin
IS working on Safari
IS working on IE
IS NOT WORKING on Chrome
IS NOT WORKING on FIREFOX

2nd example for subscribe :
http://bethyeshoua.org/index.php?option=com_formmaker&view=formmaker&id=12&Itemid=1244
IS working on Safari
IS working on IE
IS NOT WORKING on Chrome
IS NOT WORKING on FIREFOX

System information (as much as possible)

Mac OS Sierra 10.12.1
Process 2,9 GHz Intel Core I7
RAM 16 Go 1600 MHZ DDR3

Additional comments

subscribed members can't use all this website because incompatibility between joomla 3.6 and Browsers Chrome, Firefox aso.