Personally, I've never had a problem with the tomcat folder. It's always been something else.
In fact, your error about 'waiting for LDAP connection' tells me that the LDAP is not configured correctly and that is probably what the hangup is. Tomcat won't load if LDAP isn't working. iManager won't load if Tomcat isn't running.
In certain situations where I have had this problem, it's very difficult to get past. You don't have to reinstall the server, but you do have to go through the install process and let it recreate the LDAP objects and configurations.
There is yet another post from a while back that I explain the process step by step.... go here..
A note to add about this process.. It doesn't reinstall your server as new.. but it does go through the process as if you were upgrading it. Don't worry, it's fine to do this. You won't lose any data. But you do have to answer questions about hardware, drivers, etc. much like when you instaled the server the first time.
Marvin Huffaker MCNE, CNE
Marvin Huffaker Consulting