How to return the borders style that I had? I need help

It changed by itself and I don’t know why it changed

I need the first one

Will be very thankful to someone who teaches

How it was https://drive.google.com/file/d/11bI4eWZYwux1Ro0_dts1dIsqmAHlKCYJ/view?usp=sharing

How it is now https://drive.google.com/file/d/1No_yUCIp_EFN8JFddj14ip14It0ZbfBT/view?usp=sharing

To teach the correct fix, help us to grasp the problem: mention OS name, exact LO version and save format. And your pictures are completely useless: you gave no idea about what they are related to, what element of the document they are supposed to illustrate, …

I am very sorry by my wizard crystal ball is out for maintenance.

Best thing you can do is to attach a sample file.

PS: remove common tag if your problem is a Writer one. common means the same issue occurs in Writer, Calc, Impress, Draw, Math and Base.