Falskaar. Gate problem. (The Elder Scrolls 5: Skyrim)

I guess everyone... I don't know, the 500 user who installed Falskaar had this problem with this Ancient Cube. Remember Yalamar, who gives the quest? So, I took this quest from him, went to the mine, incinerated all the bandits, the centurion, took the cube, put it on a pedestal, but it just won't be put! I press E, pointing at the pedistal and no reaction. I saw, on an Internet (special thanks to Google), people also asked this question. But, there were no answers. I've already tried uninstalling and installing another version, same thing. I tried the activate command on the pedestal, also nifiga. Disable - enable does not help. I tried to add another cube to the inventory, also nifiga. There are saves before picking up the cube, there are no saves before talking with Yalamar. I even tried it on other characters, and turned off the mods, leaving only DLC. In general, if anyone solved this "unsolvable" problem,