Bug report, random crash

[Aero182]

sometimes, the game randomly crashes(but i've only had this issue after building the defensive gate level 3 and defensive walls level 3), and another bug is when i try to build a defensive wall 3, i place the first part of the wall, so i have one line of wall placed down, but when i try to build it farther, it says "can only be placed inside a building" but i click confirm anyway (lol) and it crashes. good luck