Plugins are failing

[ Moderator note: moved to How-to and Troubleshooting. ]

Hello Community,

My story in as short as possible:
I builded a website using wamp on my pc. Tryied to use the dublicator plugin to get it copied to an online server but that did not work for some reason. I decided to make the whole site all over agian and exported my setting pages menus etc via wordpress. I installed all the plugins on the online server and imported my pages thru the importer plugin from wordpress.

At first i looked the same and everything went fine but now i am working on it more often i noticed a lot of problems with the plugin. Everything is failing on my and reinstalling the plugins does not work. Here is a short list:

woocommerce: can not add a shipping zone. The page simply refreshes and does nothing.
Elementor: I can only edit the home page so i had to install another page builder
Icon menu: simple does not work. it does nothing when i try to change thinks in the menu
wdd instagram feed: only works with a shortcode not with the widget so i can not set things like: Like and comment etc.
Regenerate Thumbnails: just freezes when i try to regenerate all my thumbnails

I am aware it could be all individualy problems but it gets really anoying. Is it normal as a website developer to get so many errors and you need to work arround all of them or is it something else. I know this is a very wide question but before i start all over agian with a clean install I want to know if it is even possible i could be related to a wordpress install.

I hope this can get a conversation started.

Kind regards,
Pieter

Additional info:
WordPress Environment
Home URL: http://www.samasamasilver.nl
WC Version: 2.6.6
WP Version: 4.6.1
Language: en_GB

Server Environment
Server Info: Apache
PHP Version: 7.0.12
PHP Post Max Size: 96 MB
PHP Time Limit: 50
PHP Max Input Vars: 5000
cURL Version: 7.26.0, OpenSSL/1.0.1t
Max Upload Size: 96 M

Active Plugins (12)
Polylang by Frédéric Demarle – 2.0.7
Redux Framework by Team Redux – 3.6.2
Fruitful Shortcodes by fruitfulcode – 1.5
Maintenance by fruitfulcode – 3.1.1
Regenerate Thumbnails by Alex Mills (Viper007Bond) – 2.2.6
Page Builder by SiteOrigin by SiteOrigin – 2.4.17
SiteOrigin Widgets Bundle by SiteOrigin – 1.7.1
Instagram Feed WD by WebDorado – 1.1.13
Hyyan WooCommerce Polylang Integration by Hyyan Abo Fakher – 0.28
WooCommerce PayPal Express Checkout Gateway by Automattic – 1.1.2
WooCommerce by WooThemes – 2.6.6
WP Add Custom CSS by Daniele De Santis – 1.0.0