Products discription disappears

When writing a product description of the letters ąčęėįšųūž text disappears. But elsewhere this development is seen

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Hi,

some of my categories disappeared letters: "ąčęėįšųūž" but some do not. I enclose a photo that you understand my problem

http://imageshack.us/photo/my-images/851/lettersm.jpg/

You still haven't supplied the requested information.

1. This is my first posts to this topic
2. V150 version
3. Not updated
4. I didn't install addons
5. It's my first store

some of my categories disappeared letters: "ąčęėįšųūž" but some do not. I enclose a photo that you understand my problem

http://imageshack.us/photo/my-images/851/lettersm.jpg/

http://enioshop.wu.lt/ this is my site

This might have something to do with zencart being set to use something like utf-8 but the database set to use latin1 ?

I don't know the full answer, but I've seen something like this before when upgrading my database. However, usually when I add new products/categories I would not see this behavior.

https://www.zen-cart.com/tutorials/i...hp?article=414

thank you it helped