2005 Buick lesabre. All blinkers flash rapidly

Actuate left turn switch and both front and rear left blinker lights flash rapidly.
Same scenario with right turn switch. The clear lens lamp next to either left or
right turn signal comes on solid when that same side turn signal is flashing
rapidly. The turn signal indicators in the dash are always on when the left or
right turn switches are not actuated,but the corresponding arrow will blink
rapidly if either turn switch is actuated. The 2 running lights located on the
passenger side of the trunk are out and I haven't checked or replaced them
yet. FYI, the front bumper was recently removed,painted and re-installed at a
body shop. All was OK before