Web Forms/links breaking when I change my password

Hi there,
Everytime I change my password something always happens with my website forms, for example I have a course that you can sign up to from my website that sends out 5 videos each day for 5 days…it can be working perfectly then I change my Infusionsoft password and suddenly it may only send out 2 of the videos??
Another example, someone might download an E-Book from my website and their details come through to Infusionsoft all jumbled up: i.e. Their surname in the email box
I keep asking my tech’s and they keep blaming the password change. Is this correct or do they not know how to set it up correctly?
Thanks in advance for your assistance