Try to give it a look to the game's guide, step 14 tells you what to do:
https://subscribestar.adult/posts/155144
You already did this steps?
1- Play scene one of the male bear with the skinny girl at the park (she is at the entry of the park).
2- Continue the interaction but playing the second scene with the same girl and your same male bear.
3- When finish the second scene, doesn't turn that girl into a monster.
That must make Cloy tell you a message informing that a new spell has been unlocked (futanary) at her store, and you will be able to buy the spell at Cloy's store for 60 points.
The message about your container is due to having only one container and that container at level one (max of 50 energy points). To buy a new container you can do it in the same Cloy's store for 50 points, that will make you have two containers with a size of 50 points, allowing you to store 100 energy points.
If you haven't one of both conditions, two containers or first container in level two or three, Cloy won't tell you that message, so you are having only one container and at level one right now.
I already test it and it's working.
I haven't the first bottle at level two or a second bottle and I can't buy the spell, so Cloy tells me the message you said, but after buying the second bottle, the Cloy's message changes.
I don't know if you are using an old save (save file of a version 0.20 or older) that allows you to store more sexual energy than 50 points without buying the second bottle, but it may be the cause of your problem. But anyway, using an old save or not, buying the second container should work.
Thank You for the fast reply for me
there's nothing wrong about your game's guide, the real problem is at my sex Gods folder
I already progress after I delete all file that connect with sex gods, and try it again one more time and it work. in here i don't know what file that corrupt in Sex Gods Folder
and your game's guide it's really work, Thank You for making game's guide so I didn't get lost anymore
Thank You :)