So me and my friends have a realm that I started and armour stands with our armour on them will disappear and we will lose our hard work for now how I solved the problem I went to a backup of the game but this also happend to my friend in his realm Issue...
Enter this command in the command block and power the block: /tp @e[type=minecraft:ender_dragon] 0.0 70.0 0.0 Summon armor stands on the dragon: /execute at @e[type=minecraft:ender_dragon] run summon minecraft:armor_stand →The server crashing after a minute or two ...