Local Restaurant Coupon not working although never used

[DeborahMi]

Please assist me with accessing a coupon. There are two offers for  NIECIE'S RESTAURANT 6441 Troost Ave KCMO, MO 64131 using this link https://memberoffers.aarp.org/?code=FQ62HbJoiJ9Pyonm0sF4X3XgD92vriWZ4LwtzWN0qaw&state=augeo 

I would like to use the $15 off purchase of $30 or more.

I attempted to use the Print the coupon button but it received a message saying "Unable to redeem offer. Offer usage limit has been reached." However, I've not used this coupon previously. I cleared my history, cache, etc and attempt again with the same result. 

Offer Terms

Powered by Access. Valid only at the location listed. Only one offer may be redeemed per visit. Offer may not be valid with other sales/promotions. Void if altered, transferred, purchased or sold; use for these purposes is illegal and constitutes fraud. Other restrictions may apply. Offers are subject to change without notice. No cash value. © Access Development. All rights reserved. www.accessdevelopment.com All rights reserved.