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iam getting error in below update statement like string quote not ended properly

UPDATE tibtcare_ppm_st.ppm_item_marketing_info SET lang_value = 'Prioritized delivery of DNA Finland's network -testing', created_by = 'a0666332 -testing', end_date = NULL WHERE ITEM_INFO_NBR = '40880' AND OP_ID='HOB' AND BU_ID='DEFAULT'