Cannot resolve due to data type mismatch: incompatible types ("STRING" and ARRAY<STRING>

[oussValrho]

hey i have this error from a while : 
Cannot resolve "(needed_skill_id = needed_skill_id)" due to data type mismatch: the left and right operands of the binary operator have incompatible types ("STRING" and "ARRAY<STRING>"). SQLSTATE: 42K09;
and these are the lines responsible for that : 

 to_update = current_link_df.where(col("active") == True).join(dataframe, ["position_id", "needed_skill_id"], how="left_anti")

    (

        DeltaTable.forName(spark, table_name).alias("t")

            .merge(to_update.withColumn("end_date", current_date()).alias("s"), "s.position_id = t.position_id AND s.needed_skill_id = t.needed_skill_id")

Any idea ?

Thank you !!