Error with Pagination class

Hello, very good, I am doing a small project to strengthen my knowledge with CodeIgniter and its libraries, and I ran into an error with the Pagination library, which I can not solve, I do not know who to turn to, so I will explain it here If any of you can give me a solution.

In the following image comes the fragment of my code that generates and configures my page:





But when I try to see how my pagination was, it really is very flawed and I tried a thousand ways, but all end up with the same error, I had to change to the library and update it, but nothing at all.

I leave a small GIF where you can see the strange bug.






If any of you could help me I would be very grateful, a strong greeting and many thanks in advance.

PD:  I am Spanish so my English is not good, I regret the inconvenience.

You should have shown us the html output and maybe the CSS.

Website: http://avenir.ro