Incompatibility between Guardian Series (Yami) and Free Turn Battle (Yanfly)

First, I would like to ask if anyone knows if Yami isn't giving any updates to his old Ace scripts like the Guardian Series. It seems so, but I would like to confirm, because if this is the case, I would have to change the gameplay of my project since the Guardian Series has some incompatibility issues with YEA - Free Turn Battle, which is more important for overall gameplay. So its kinda an important question  ;~~

Second, in battle, when a actor tries to summon a Guardian and Free Turn Battle is present, the game crashes. If I remove FTB from the game, the summoning works fine. Anyway to fix this incompatibility? I've already tested on an new project and keep getting the error.

The error message I get when the game crashes:

Script ‘YEA – Battle Engine’ line 1627: TypeError occurred

no implicit conversion from nil to integer

Also, I've seen some bugs (and visual bugs) when I'm using Victory Aftermath and Guardian Series together. 

Thanks in advance.

Switch the order the scripts are in aka put guardian series above ftb and see if that works.

Thanks Shin, but still doesn't work.

bump.

Don't know if this works for you, but I use both Guardian system and free turn but i use the following set up. The free turn system needs a turn to re adjust to another character entering the battle, so on my guardian summon skill, I add this, <ftb cost: 10>, to the guardian summon skill, that way when an actor uses the move to summon a guardian, the players turn ends and next turn, all characters can act, including the new summoned guardian.

I add a small note in the game to tell players that using the guardian summon skill passes all remainder player turns so use it last, and since the free turn lets you choose the order of your characters attack, its easy.

Hope it helps