Unexpected Application Error!

Minified React error #31; visit https://reactjs.org/docs/error-decoder.html?invariant=31&args[]=object%20with%20keys%20%7Bkey%2C%20value%7D for the full message or use the non-minified dev environment for full errors and additional helpful warnings.

Error: Minified React error #31; visit https://reactjs.org/docs/error-decoder.html?invariant=31&args[]=object%20with%20keys%20%7Bkey%2C%20value%7D for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    at Ri (https://www.szpullman.com/assets/index-xfuS7S5v.js:38:6314)
    at _ (https://www.szpullman.com/assets/index-xfuS7S5v.js:38:11380)
    at Je (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:1475)
    at Dm (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:45668)
    at km (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:39727)
    at p0 (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:39655)
    at ka (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:39508)
    at $o (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:35875)
    at _m (https://www.szpullman.com/assets/index-xfuS7S5v.js:40:34826)
    at k (https://www.szpullman.com/assets/index-xfuS7S5v.js:25:1585)