Thanks for reaching out in the community! We are happy to help! I can understand why having the campaigns bar missing would make it hard for you to use our website. I'd like to ask a few questions about your setup:
You may want to take a look at the list of Web Browsers that work with Constant Contact to ensure that you are using a compatible browser. If you are using a work network, you may need to have your IT team Whitelist Constant Contact Domains in your security program.