Error when saving All Style Options

[CyberAlien]

I guess your styles hierarchy got messed up. Look in "style" table. Check "parentid" and "parentlist" columns. "parentid" should be id of parent style, "parentlist" is a list of all parent styles.

Here is example of how it should look like:
1. Default Style (parent: "-1", parent list: "1,-1")
- 2. BlueCream (parent: "1", parent list: "2,1,-1")

My guess is that style has some invalid style id in parent styles list. Make sure all styles with ids in parent list do exist, and dont remove "-1" from it as -1 is root style id.