Sorry for the late answer, but as i can see Ahmad already have helped you.
How ever, it was a mess to give you the right answer! WHY ???
1) First learn to use this forum!
a) do not open multiple posts on (almost) the same topic/issue.
b) describe your situation as most detailed as possible, including all informations about your SETUP, your used Wix-Editor, ELEMENTS, IDs, DBs, DATASETs and so on…
c) Do not place CODE-PARTS into → PICs! Show codes inside a CODE-BLOCK!
d) Always be thankful and choose best answer and giving some likes 
2) Use more the POWER of CONSOLE!
Observing all your generated codes → you did not used the CONSOLE consequently. The CONSOLE (especialy for you as beginner) is a LIFE-SAFER!!!
3) Do not expect that you will always get READY-2-GO-SOLUTIONS like this for free. (just a little start-up 4 you).
4) And here i provide you somethign of a combination of Ahmads and my own ideas and thoughts … (do not forget to take a look at all the given CONSOLE-LOGS inside it)…
PAGE-CODE- A :
//Page-A ---> EVENTOS (here your Login is located!)
import wixStorage from 'wix-storage';
import wixLocation from 'wix-location';
import wixData from 'wix-data';
var storageDATA = {};
//------ User-Interface ---------------------------
var DATABASE = "Bypass-DB"
var onlineTime = 1 //in minutes!
//------ User-Interface ---------------------------
$w.onReady(()=> {setInterval(logOut, (onlineTime*1000*60));
let data = wixStorage.session.getItem('storageDATA');
if (typeof data === 'string') {console.log("Data in STORAGE found! ", storageDATA);
storageDATA = JSON.parse(data); console.log("Parsed-Data: ", storageDATA);
}
else {console.log("No data in STORAGE found!"); create_storageDATA();}
$w("#btnLogin").onClick(async()=> {console.log('Button clicked!'); console.log(storageDATA);
if(storageDATA.onlineState === "true") {console.log("Online-Time not expired yet!");
//What to do here ...........???????
console.log("REDIRECTION TO WHAT PAGE EVER!")
wixLocation.to("/page-b"); //--> redirection to page-B; User-Logged-in
}
else {console.log("Online-Time expired! Please log-in again!")
let email = $w("#email").value; console.log("Entered-Email: ", email);
let password = $w("#password").value; console.log("Entered-Password: ", password);
let dbDATA = await checkLogin(email, password); console.log("DB-RESULTS: ", dbDATA);
if (dbDATA.length > 0) {//setting online-status...
storageDATA.onlineState = "true"
storageDATA.maxLoginTime = onlineTime;
storageDATA.element = "button2";
storageDATA.command = "hide";
wixStorage.session.setItem("storageDATA", JSON.stringify(storageDATA));
wixLocation.to("/page-b"); // --> redirection to page-B (principal); User-Logged-in
} else {console.error("Email/password wrong!");
//wixWindow.openLightbox('loginwarn');
storageDATA.onlineState = "false"
wixStorage.session.setItem("storageDATA", JSON.stringify(storageDATA));
}
}
});
$w("#btnLogout").onClick(async()=> {logOut();});
});
function create_storageDATA() {console.log("Creating new Storage-Data running...");
storageDATA = {
onlineState: "false",
maxLoginTime: onlineTime,
element: undefined,
command: undefined,
}
}
async function checkLogin(email, password) {
return wixData.query(DATABASE)
//.eq("title", email)
.eq("email", email)
.eq("password", password)
.find().then((res)=>{return (res.items);});
}
function logOut() {
console.log("Your ONLINE-TIME has been expired! Logout-Process running!");
storageDATA.onlineState="false";
wixStorage.session.setItem("storageDATA", JSON.stringify(storageDATA));
}
PAGE-CODE-B:
import wixStorage from 'wix-storage';
import wixLocation from 'wix-location';
$w.onReady(function () {
let storageDATA = JSON.parse(wixStorage.session.getItem("storageDATA")); console.log(storageDATA);
console.log("Command: ", storageDATA.command);
console.log("Element: ", storageDATA.element);
//command in action --> hiding the wished element on your page-B
$w(`#${storageDATA.element}`)[storageDATA.command]()
// wixLocation.to("/plogin")
});
EXAMPLE:
https://russian-dima.wixsite.com/login-system/page-a
So you have now a working EXAMPLE you can compare with your own solution.
And now! After all these somekind of rude sounding words → HAVE FUN & GOOD LUCK WITH YOUR PROJECT! 
I hope you have learned → That CODING can be a very TIME-CONSUMING thing!
BTW: Do not forget to change all ELEMENT-IDS to your own ones!
and I don’t know why they are, I just want while the session is active, the email entry and password disappear while the button continues to go to the main page, and after the session expires, go back to show the entry
i do