Tx couldn’t be committed: No witness yet

[greenpen19]

Im actually forking litecoin and my coin it’s ready the only problem i have it’s that i want only one node active in my net, the thing it’s that i made a system bassed on create accounts associated to an address, the thing it’s that sometime when i use the call sendfrom the transaction appears on gray and after i mine a block the tx become offline, the thing it’s that if i repeat the same tx x times It become a good tx and it’s comitted.
The msg that trigger when the error happens it’s something similar to “The transaction couldn’t be committed no witness yet” after a research i end Up seeing this is associated with the segwig protocol. Someone knows how to evade this problem? the only thing that i thought It could resolve it’s backing to an old version of litecoin where segwix wasn’t implemented.
If anyone knows anything any help it’s greeted