Solved Storing blocks into a list on break then putting them back after a specific time.

[NeptunePlayz]

So as the title says I basically want to store a broken block into a list then placing them back again in the same location after a specific time has gone.

I didn't manage to do it, so here's my code:

on enable:
 set block at {cave::cobble} to cobble

on disable:
 set block at {cave::cobble} to cobble

every 2 minutes:
 set block at {cave::cobble} to cobble

on block break:
 if player is in world "Some world":
  if event-block is cobble:
   cancel event
   set event-block to stone or andesite or cobble
   add location of event-block to {cave::cobble}

command /test:
 trigger:
  set block at {cave::cobble} to cobble

So if anyone can help me I would really appreciate it.
[doublepost=1578166849,1578148030][/doublepost]I fixed it. I will post a new reply later saying what I did