["Click here to fix" not working.]

I am getting the folliwng error message at the bottom of the screen:

A required field was left blank.

This error prevents tax calculations. Click here to fix.

 

However, when I click on the "Click her to fix" link, nothing happens except I the following text appears in the bottom left corner of the screen:

 

unsafe:unsafe:1|1|~@CG;@G25E6:I1;|~#K*17007:G*25:E*6:I1;#K*12690;1;

 

Can anyone suggest a fix to this problem?

 

Thanks