Invalid nested formula syntax

Hello all, I am trying to rework a formula that I was helped with on here before. The current formula is searching for a unique ID on 4 different tabs. I need to add (1) additional tab to the formula but it is giving me an error.

Here is the current formula:
=IFERROR(IFERROR(INDEX(Tab1!A:A,MATCH($E2,Tab1!$E:$E,0)), IFERROR(INDEX(Tab2!A:A,MATCH($E2,Tab2!$E:$E,0)), IFERROR(INDEX(Tab3!E:E,MATCH($E2,Tab3!$E:$E,0)), IFERROR(INDEX(Tab4!A:A,MATCH($E2,Tab4!$E:$E,0))))),"")

Here is my adjusted formula:
=IFERROR(IFERROR(INDEX(Tab1!A:A,MATCH($E2,Tab1!$E:$E,0)), IFERROR(INDEX(Tab2!A:A,MATCH($E2,Tab2!$E:$E,0)), IFERROR(INDEX(Tab3!E:E,MATCH($E2,Tab3!$E:$E,0)), IFERROR(INDEX(Tab4!A:A,MATCH($E2,Tab4!$E:$E,0)), IFERROR(INDEX(Tab5!A:A,MATCH($E2,Tab5!$E:$E,0))))),"")

I didn't do anything but add a separate tab to the list and now it is giving me this error:
You've entered too few Arguments for this function.

Any ideas what I am missing?

Thanks for the help!

Nathan