Wordpress inline forms not working

[JenniferS16101]

using inline forms, but when people try to sign up it says cannot process request, please contact us

sometimes people suceed to sign up but most get this error message and I have spent hours troubleshooting. Need help!

Error logs from debug:

[2021-06-05 03:22:11] API.INFO: ConstantContact_API::add_list:323 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 03:22:12] API.INFO: ConstantContact_API::update_list:417 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 03:22:14] API.INFO: ConstantContact_API::get_list:280 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 03:24:06] API.INFO: ConstantContact_API::get_list:280 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 03:59:53] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 03:59:59] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 04:07:37] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 04:07:50] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 04:39:26] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 04:39:52] Authentication.INFO: Authorization verification succeeded. [] []
[2021-06-05 04:40:25] API.INFO: ConstantContact_API::get_list:280 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 04:41:54] API.INFO: ConstantContact_API::get_list:280 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 04:43:20] API.INFO: ConstantContact_API::get_list:280 - http.status.not_found - No matching resource was found for the supplied URL. [] []
[2021-06-05 04:58:00] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 05:03:08] Middleware.INFO: Verification option proof was null [] []
[2021-06-05 05:03:19] Authentication.INFO: Authorization verification succeeded. [] []

[Zoe_H]

Hello @JenniferS16101,

Thank you for reaching out to the Community! It does look like we have started troubleshooting over email so I will continue to assist through that channel! Please also try contacting WordPress to see if they may have an answer for this error message as well. Thank you!