Attempt to index nil with

[hallow mist]

when a player press a button it trigger a remoteevent, and create for him a folder called for example "PlayerMemory" but if i have a localscript for example in starterplayer that is trying to access to PlayerMemory before it got created, it give me attempt to indel nil with PlayerMemory, how can i do
it is possible to make like, if there is no PlayerMemory for now then ignore it until it exist?

this is an example:

[terse yarrow]

which line does this error point to

[long birch]

try :FindFirstChild("") ?