php 7.2 upgrade cause 500 errors

Refused to apply style from 'https://smartsailing.org/templates/rt_oculus/css/error.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

PHP Version : 7.2.16

MySQL Version : 5.5.60-MariaDB

Server Information : Linux mail.smartsailing.org 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64

Fix jQuery? : Yes

Load JEvents Bootstrap CSS? : No

Max Input Vars ? : 2048

Club code set? : Yes  

User Agent : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36  

Joomla : 3.9.4

component_com_jevents : 3.4.50

component_com_jevpeople : 3.0.38

component_com_rsvppro : 3.4.19

component_com_jce : 2.6.7.1

module_mod_jevents_cal : 3.4.50

module_mod_jevents_calendarplus : 3.3.4

module_mod_jevents_custom : 3.4.50

module_mod_jevents_filter : 3.4.50

module_mod_jevents_latest : 3.4.50

module_mod_jevents_legend : 3.4.50

module_mod_jevents_switchview : 3.4.50

module_mod_remoteloader : 1.1.7

layout_JEventsFlatplusLayout : 3.4.13

layout_JEventsIconicLayout : 3.5.6

layout_JEventsMapLayout : 3.4.1

layout_JEventsRuthinLayout : 3.4.6

layout_extplus : 3.1.7

layout_iconic : 3.5.3

plugin_content_jevents : 3.4.50

plugin_content_jevpeople : 3.0.38 (not enabled)

plugin_finder_jevents : 3.4.50 (not enabled)

plugin_installer_jeventsinstaller : 3.4.50 (not enabled)

plugin_jevents_jevcalendar : 3.4.1 (not enabled)

plugin_jevents_jevfiles : 3.7.14 (not enabled)

plugin_jevents_jevpeople : 3.0.38

plugin_jevents_jevrsvppro : 3.4.19

plugin_rsvppro_authorizenet : 3.4.19

plugin_rsvppro_manual : 3.4.19

plugin_rsvppro_paypalipn : 3.4.19 (not enabled)

plugin_search_eventsearch : 3.4.50

plugin_search_jevpeoplesearch : 3.0.38

plugin_system_gwejson : 3.4.50

plugin_system_hika_rsvp_redirect : 3.4.19 (not enabled)