html - W3C validation Error: Bad value -

the w3c validation report me error:

error: bad value http://form-integra.seekeo.com/tool-register-form/javascript?site_id=1273912&mych=2&chids[]=2&mygender=2-1&theme[login]=0&fb=1&style_id=8417&tracker=grandesexonegro attribute src on element script: illegal character in query: not url code point.

from line 166, column 1; line 166, column 230

mulario">↩<script type="text/javascript" src="http://form-integra.seekeo.com/tool-register-form/javascript?sit…ids[]=2&amp;mygender=2-1&amp;theme[login]=0&amp;fb=1&amp;style_id=8417&amp;tracker=grandesexonegro"></script> 

syntax of url:
url. example: /hello, #canvas, or http://example.org/. characters should represented in nfc , spaces should escaped %20.

but don´t understand error , how solve this.

how can fix this?

this complete url:

<div class="elformulario">  <script type="text/javascript" src="http://form-integra.seekeo.com/tool-register-form/javascript?site_id=1273912&amp;mych=2&amp;chids[]=2&amp;mygender=2-1&amp;theme[login]=0&amp;fb=1&amp;style_id=8417&amp;tracker=grandese xonegro"></script> </div> 

w3c validator maintainer here. specific problem in url square brackets contains; "[" , "]" characters. aren’t valid url code points per url standard.

i plan url checker in validator updated report particular illegal characters finds in urls while yet before can refinement made.

anyway way fix url run through tool percent encode (aka “url encode“) characters in url aren’t valid url code points.

one online tool percent-encoding urls eric meyer’s url decoder/encoder.