I used to use another softphone that periodically would not connect my calls and I never found out why.  I found this softphone and thought it may resolve my issues but so far have not been able to get it to work at all.  I like the debug feature so I can see what is occurring but it does not mean anything to me since I am a user and not a programmer. 
How can I fix the following error?  I have yet to complete a call with PhonerLite.   

12:47:07,021: T: 52.26.251.34:3478
STUN
  public ip: 97.118.26.230:55006