Encountering List Number Issues that are Incorrect when Adding items.

In this picture, I included a screenshot of what my List is Doing. But the numbers are all wrong and everything is off when I try to add new items to the list. The numbers repeat at 319 is an example of what is happening. I included my list URL below, but if there was a way for IMDB to reset the list numbers that would be great. Thank you. https://www.imdb.com/list/ls538251078/ The list is called "Movies & Shows I Have Watched"