Missing Ecommerce Data : Multiple errors

I have read multiple fourm posts and blogs but I am not able to solve this.

As I am not a pro developer please help me out.

I am using this plugin for eCommerce tracking but I cant see any eCommerce tracking in my google analytics.

I get following error in google analytics settings :
Missing Ecommerce Data
error
View All Web Site Data is configured for Ecommerce, but no data is flowing.

When I checked with chrome tag assistant plugin I get following error :
for goole analytics script tag
1. An error occured while the tag was fired: net::ERR_ABORTED
2. Error while sending request: net::ERR_ABORTED

for uA tag
No HTTP response detected

I have enabled all checkbox in app settings.
I have eCommerce and enhanced both options enabled in google analytics settings.
I have no other plugin which will interface I tried deactivating all security and cache plugins but it gives same error.

Please help me As I am not pro and I dont have any tech knowledge about coding

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