Taken from the Mod Author's Discussions page:
And PLEASE read all of the Author's notes on this mod. LOTS of information. Lots.

3.) YOU CAN'T PICK UP STRUCTURES - You need to enable structure pick up in the vanilla game settings. Add "AlwaysAllowStructurePickup=True" under the [ServerSettings] header in the gameusersettings.ini (make sure its not already there and set to false).

https://steamhost.cn/steamcommunity_com/workshop/filedetails/discussion/731604991/3825286048530307798/

I've already added to allow structures pickup and I can pickup everything except this S+ Tek Shield and that was why I was asking.
I'm still not able to pickup the shield. I do not know how long this regenerating... process last or if I can even pick it up after that.

Shields can not be picked up whilst they are recharging to prevent people exploiting/cheating.

What people used to do was drop a shield, let it absorb damage, pickup and redrop it as it would start with a fresh shield pool. The result on PVP servers was that a defender could hold off an attack perpetually just by juggling shield gens.

S+ prevented pickup whilst recharging to prevent this cheaty behaviour.

If you're PVE, SP, or dont care... Read the rest of the S+ configs. There is most likely a config that adjusts that specific shield pickup restriction.

How long does it take or recharge or regenerate?

copied from the config data:
ShieldRespawnDelayInSeconds=3600 /60 seconds = 60 minutes or an hour.
Time until the shield will respawn after being destroyed (max: 86400)

ShieldRegenDelayInSeconds=600 - should be 10 minutes
Time until the shield begins to regen health after being damaged (max: 86400)

So depending upon how much damage, It could take some time.

Ok, thank you. I probably will only use it on purple OSD and I'll manually destroy it.