unexpected end of json input in Opencart Admin Order Edit



Hi, I am getting this error in Opencart Edit order in Admin as javascript alert unexpected end of json input . I found this  solution by just adding API in System-> Users->API.then select this api in System->Settings->[Edit]Store->Option Tab->Checkout Section . then I checked again by editing any order in admin. I didn't get error  again.My error has been fixed. For more detail of this  this follow given below link:- https://www.fastcomet.com/community/opencart-2-error-syntaxerror-unexpected-end-of-input-ok/

2. or the second solution for the same problem I found by fixing language character. I had spanish language installed where some character is generating this error. so I changed that character and problem has been fixed like !,~,`,^ etc.

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