mySQLi login issue???

I'm using mySQLi user authentication behaviors and in Chrome, it's failing - when I've got customers trying to login for an event! Horrible timing! Chrome seems to be the big issue, it says this from Console :
gcid-0.1.0.html?notrack:1 Uncaught DOMException: Failed to read the 'localStorage' property from 'Window': Access is denied for this document.
at localStorageAvailable (https://g.jwpsrv.com/g/gcid-0.1.0.html?notrack:1:472)
at https://g.jwpsrv.com/g/gcid-0.1.0.html?notrack:1:1217
localStorageAvailable @ gcid-0.1.0.html?notrack:1
(anonymous) @ gcid-0.1.0.html?notrack:1
cast_framework.js:57 [Deprecation] document.registerElement is deprecated and will be removed in M73, around March 2019. Please use window.customElements.define instead. See https://www.chromestatus.com/features/4642138092470272 for more details.
(anonymous) @ cast_framework.js:57
(anonymous) @ cast_framework.js:61
cast_framework.js:52 [Deprecation] Element.createShadowRoot is deprecated and will be removed in M73, around March 2019. Please use Element.attachShadow instead. See https://www.chromestatus.com/features/4507242028072960 for more details.

Is this something that can be fixed immediately???

These wouldn't cause a failed login I don't think. Give me a call and we can screen share to debug the issue and get it fixed.