Hi, @Cde3Cvr Thank you for reaching out, I can help you solve those issues you are having on your device. Please follow the steps below.
Go to Settings> LOck screen> Secure Lock Screen> Show Lockdown option
Make sure the lockdown option is off.
Also, if you are using a cellphone case, please double check if the case is not pressing the power button accidentally.
Please let me know if this works for you, Thank you!