If you do not remember your password, you have tried all possible passwords and can not access because of the wrong password, you can request a new one.
Go to https://app.eventelis.com and click "Forgot Password?", just below the Login button.
Enter the email you used in your registration on the platform and confirm.
Go to your email box and click on the link you received to change your password.
You will be redirected to another page, where you must enter your new password, according to your preference.
Go back to the Login page (https://app.eventelis.com) and make login with your email and the new password.