Getting an Error on Node.js Postgresql user authentication - node.js

Question

I keep getting an eerror when trying to create user auth with express
this is the error
Executing (default): SELECT "id", "companyName", "password", "email", "createdAt", "updatedAt" FROM "Users" AS "User" WHERE "User"."email" = 'testing#testing.com';
Executing (default): INSERT INTO "Users" ("id","companyName","password","email","createdAt","updatedAt") VALUES (DEFAULT,'test','$2a$10$5zE8XFLAo8JxCqEqj7ELC.Zo.tFPINCgW6pf/WkpqrhDPEkTYPFaS','testing#testing','2020-07-10 04:56:43.081 +00:00','2020-07-10 04:56:43.081 +00:00') RETURNING *;
/Users/ThaylieNguyen 1/Desktop/Projects/EntrepreneurCRM/server/controllers/usersController.js:36
if (err) throw err;
^
Error: Illegal arguments: undefined, string
const signup = (req, res) => {
console.log(req.body)
if (!req.body.email || !req.body.password || !req.body.companyName) {
res.status(400).send({ msg: "Please pass the required information." });
} else {
User.findOne({
where: {
email: req.body.email,
},
})
.then((user) => {
if (!user) {
return res
.status(400)
.json({ email: "a user is already registered with that email" });
} else {
const newUser = User.create({
email: req.body.email,
password: req.body.password,
companyName: req.body.companyName
})
bcrypt.genSalt(10, (err, salt) => {
bcrypt.hash(newUser.password, salt, (err, hash) => {
if (err) throw err;
newUser.password = hash;
const payload = {
id: newUser.id,
email: newUser.email,
companyName: newUser.companyName,
};
newUser
.save()
.then((user) => {
jwt.sign(
payload,
keys.secretOrKey,
{ expiresIn: 3600 },
(err, token) => {
res.json({
success: true,
token: "Bearer " + token,
});
}
);
})
.catch((err) => console.log(err));
});
});
}
});
}
};