Woocommerce price filter

Hello all,

I have some problems with my website. I did set up a price filter on the shop page of the website but it is working very strangely. At Apple products it works well, but on my lenovo laptops sometimes it doesnt work at all, and sometimes it works when i do the price ball till 3/4 and when i do it back to 1/4 then it works too. I have no clue why it works on apple very well but on other devices not or strangely.

Other problem is that my website sometimes acts strange. The menu text is bold but sometimes it changes to skinny text. Another problem is that i first had the prices at the store at around 50 dollar prices but now i did change it to peso what is a lot bigger. First i saw the correct prices but when i reloaded the page all was at the old prices again. A few minutes later i opened the page again and then it was fine again. How can it happen that sometimes things change back?

I had the same on mobile. I did the hamburger from the menu on hide because i made a side bar and i only wanted to use that one. But at the beginning it was hidden, when i reloaded a bit later it was back and so it changed all the time.

An other question i have is how can i change the + from the slide bar to a hamburger? So it looks like the one hamburger from the menu. And how can i disable the hamburger from the menu totally? Now it is only on hide but the space is still there

I hope you guys can help me with those strange faults.

The page I need help with: [log in to see the link]