You found a scrap piece of paper...
It appears to be a lost page from Eggu's diary. It reads:
7/3/5000Dear Diary,Today, I was supposed to meet Lokee the Cat for our July play date, but he forgot to show up. Lokee eventually called and asked me to shift our play date from Monday instead and said "see you soon" before hanging up. I'm not sure how long he's been napping for because today is clearly a Thursday.He's been really cryptic these days and can't tell left from right. I guess I should sit down and figure out which day of the week he actually means...
Quick! Time to let Eggu know which day the play date is re-scheduled to! Add the answer to the end of this URL:
https://www.egguino.com/blogs/eggus-puzzles-solutions/eggus-lost-diary-page-answer (replace "answer" with the solution).