The correct answer to this open question is the following.
You forgot to mark the underlined word. However, we can comment on the following.
The first correction should be on the verb to shop. It is not "Shooping." The correct word is "Shopping."
Next, the pronoun we could clarify would be "they." We can write a better form of a sentence like this.
"I like shopping for clothes at the store because the employees who work there provide good customer service."
With that correction, we are more specific and use the proper words to give the right meaning to the sentence.