[Python] KeyError: 'tempOTP' [closed]

I want to insert the following session into my database. After writing all this code the server - flask server will return KeyError: "tempOTP". I have also tried to use sessison.get('tempOTP') from where I stored it on the server. Still is not seeing the sessions. I was expecting this code to insert the information collected by the user form in the register.html page.

@app.route('/verifyEmail', methods=['GET','POST'])
def verifyEmail():
if request.method == 'POST':
theOTP = request.form['eotp']
sesOTP = session['tempOTP']
dbName = session['tempName']
dbEmail = session['tempEmail']
dbPassword = session['tempPassword']
dbUser_type = session['tempUT']
dbImgdata = session['tempImage']
if(theOTP == sesOTP):
cur = mysql.connection.cursor()
ar = cur.execute('INSERT INTO users(name, email, password, user_type, user_image, user_login) values(%s,%s,%s,%s,%s,%s)', (dbName, dbEmail, dbPassword, dbUser_type, dbImgdata,0))
mysql.connection.commit()
if ar > 0:
flash("Thanks for registering! You are sucessfully verified!.")
return redirect(url_for('login'))
else:
flash("Error Occurred!")
return redirect(url_for('login'))
cur.close()
session.clear()
else:
return render_template('register.html',error="OTP is incorrect.")
return render_template('verifyEmail.html')

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