{"error": "can only join an iterable", "trace": "Traceback (most recent call last):\n  File \"/var/www/isupply/app/app_main.py\", line 508, in directory_page\n    result_div_html=create_result_page_items_html(query_data_dict,result_sample_html) #check <<<<<\n  File \"/var/www/isupply/app/app_code.py\", line 261, in create_result_page_items_html\n    cur_res_html=create_result_item_html(res_item,result_sample_html,str(i0))\n  File \"/var/www/isupply/app/app_code.py\", line 307, in create_result_item_html\n    persona_div_content= persona_div_template.replace(\"_persona_\",\" | \".join(res_item_dict.get(\"persona\",[])))\nTypeError: can only join an iterable\n"}