Can't check Captcha box

Trying to send a message (to Assessor's office, I think) but the "I'm not a robot" checkbox is inactive.  Can't check it.  I tried Chrome and Edge and neither works.

I was trying to send this:  please send to appropriate department?

I *think* I applied for the senior exemption last year, but I'm not certain. I've looked all over the website and I can't find any way to CHECK to see if I'm signed up. Is there a way for me to verify? If not, can you look it up for me? Gary Fritz, 1110 Club View Terrace, 80524. Thank you!