You have to re-install and setup your EAs again.
You have to login into your MQL5 community account again in MT4/5 >> Tools >> Options >> Community tab.
Then you will be able to see your purchases and install them.
Make sure that you've purchased these products here: https://www.mql5.com/en/users/leeds76/market
If the problem persist, try to log out and login again in your MT4/5 terminal.
Do a PC restart too, it may help.
Please enable the necessary setting in your browser, otherwise you will not be able to log in.