Wow! I didn't expect so much help!
I did do the internetmarketingninjas tool and it found a bunch of error but it appeared it didn't really know how to crawl my links.
Thank you for the screaming frog tool that I did not know about and seems to work good. Almost everything seems to be fine with it.
I did have some major changes on the site in the past due to a webmaster change.
Regarding the hosting, it's with Godaddy, I am not too happy with it, but the site belongs to a customer and he loves it and refuses to change it. (I also have no control over the design or content...).
Anyway all is good.
I surely appriciate all you help. Thank you again.