New Employees lack of skills in the

New Employees lack of skills in the work, cause was an problem.
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Results (English) 1:

new employees lack of skills in the work, cause was an problem.
it was a mistake.

Results (English) 2:

New Employees lack of skills in the work, cause it was an emerging problem error
.

Results (English) 3:

New Employees lack of skills in the work, was an cause problem.
it was a mistake