Cannot delete product combination ps1.7.2.2

[nathandong]

my site running all ok, but I can't delete combinations.

 

here is error message

 

Failed to load resource: the server responded with a status of 404 (Not Found)

/xxxxx/index.php/attribute/64?_token=Y6NO5nAXk7a-L-1iUFxOKrmdtQT3HFg8ZqIKBxZSaE0 

 

 

/xxxxxx/index.php/product/form/64?_token=Y6NO5nAXk7a-L-1iUFxOKrmdtQT3HFg8ZqIKBxZSaE0#tab-step3:1 Uncaught SyntaxError: Unexpected token < in JSON at position 0

    at JSON.parse (<anonymous>)

    at Function.jQuery.parseJSON (main.bundle.js:56403)

    at Object.error (product-combinations.js:31)

    at fire (main.bundle.js:51626)

    at Object.fireWith [as rejectWith] (main.bundle.js:51756)

    at done (main.bundle.js:57198)

    at XMLHttpRequest.<anonymous> (main.bundle.js:57562) 

 

 

it is 404.  

 

i think something is wrong with 

Y6NO5nAXk7a-L-1iUFxOKrmdtQT3HFg8ZqIKBxZSaE0 

it is shorter then suppose to be.

 

any help

 

i saw some people have this problem as well  but no solution.  

[nathandong]

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[dolphin]

bump

Hello guys i have the same problem any idea? tried caches recompile files and looked at the htaccess file