Unless the real question is missing from your post. The answer to your logs is clear.
Either change your code/blueprint to what it suggests , or ignore the warnings and continue.
Warnings like these are more for updatability especially if you move on to a newer version of the engine later on. But if you do not intend to then the current version of unreal you are using still allows the use of the old code. But its warning you that its deprecated and may dissapear from later versions.
Your compile was succesful so if there is no issues then by all means continue. But you have been warned (by the engine not me lol)