Hello @hutton.kate16,
My name is Alejandra and I am happy to assist with your inquiry, and appreciate you contacting LastPass Support!
I am sorry to read that you are having issues with your new mobile. I was checking your account and I notice that you have mobile restriction access enable under your account settings. We need to disable that feature so you can access with success. Please follow these steps: https://support.lastpass.com/s/document-item?bundleId=lastpass&topicId=LastPass/manage_mobile_devices_using_lastpass_access_restriction.html&_LANG=enus#:~:text=If%20you%20do%20not%20want%20to%20restrict%20access
If you need anything else, please let me know.
Thank you,
Alejandra
LastPass Technical Support