Captcha not show normally

Question

 

 I am using CaptchaMvc.Mvc5 package but I found problem in Image shown the  captcha image show as the below : 

 

I want show captcha image as the below: 

 

but when refresh the page it is show normally 

 

I try these solutions :

I try Import jquery file before write captch razor code too I try Import jquery file from google CDN but my problrm not solved 

 

please developer Help me