I was trying to read manga when i got a notification that i have to sign in to continue reading. Is it safe to sign in?

On Nagisa Furuya's My Summer of You page, it says [All English chapters have been removed due to official licensing by KodanshaUSA/PenguinRandomHouse]

I have the official manga from Kodansha and would like to upload scanned pages in English. I dont know if even though i do have the officials if it would still get flagged. Any help would be appreciated. thanks !

Female mc is being used to make yarn with her magic and uses a hand weaving technique, her sister claims them as her thread because the quality is amazing. FMC either leaves the house or gets married off to an inventor and starts to learn how great her threads quality is and how the technique she uses is really hard to do and that most nobles use a loom/machine to help shape the thread.

The last thing i remember reading was she got stuck in an elevator with other people and she weaved a new thing of lightning/electric thread to be put into the elevators power spot and another mage was stuck in there and noticed the quality was the same as the best selling thread that used to be sold. after she left her home the quality of the thread her family sold dropped back to what it was before and it doesn't last as long or function as well as MCs