You have wrong parametr DurationLimit
In first page you specifed block time=90s but set this parametr to 13s
That is why difficulty grow slow i think.
About can`t send transactions i don`t know, i have little knowledge in this field..
Try ask to other team (UBQ a smart guys, may be help if ask).
Hey guys, Alex here from the Ubiq team ($UBQ)
I hear your having difficulties but there is no where to reach you directly. Should I phone you??
I want to join your slack but the only link available is for login, not invite
https://dubaicoin-dbic.slack.com/
I messaged Walid on bittrex slack, or you can come join Ubiq slack.
http://slack.ubiqsmart.com/
Look forward to hearing from you!!
Thanks for this...Did they add you in their slack?