I have a private bedrock server with my friends in aternos hosting. Recently when we change the difficulty to hard some zombies start spawning with full golden armor and they keep duplicate the armor and drop them in the ground and causing a big lag to the server and we can't go to that place they spawn in and if we enter a portal that goes in that place it stays in loading screen. The only way to end this lag is by killing the zombie and the items he dropped.

This is the server log after i run the command "/kill  @e[type=item]" : https://mclo.gs/ZxfHB2w

Edit: it has happened again but this time with spider that was keep dropping string and the world was set on easy