Issue loading CSV file into HANA

From last couples of weeks i am trying to load my CSV file into HANA Table, but i am unable to succeed.
I am getting error "Cannot open Control file, /dropbox/P1005343/CRM_OBJ_ID.CTL". I have followed each and every step in SDN, still I could not load data into my HANA table.
FTP: /dropbox/P1005343
SQL Command:
IMPORT FROM '/dropbox/P1005343/crm_obj_id.ctl'
Could not execute 'IMPORT FROM '/dropbox/P1005343/crm_obj_id.ctl''
SAP DBTech JDBC: [2]: general error: Cannot open Control file, /dropbox/P1005343/crm_obj_id.ctl
Please help me on this

Hi All,
I have successfully loaded the file into HANA database in folder P443348 but while importing file, I am getting the following error message such as
SAP DBTECH JDBC: [2]  (at 13) : general error: Cannot open Control file, "/P443348/shop_facts.ctl"
This is happening while I am executing the following import statement
IMPORT FROM '/P443348/shop_facts.ctl';
I have tried several options including changing the permissions of the folders and files to no success. As of now my folder has full access, which is 777
Any help would be greatly appreciated so that I can proceed further

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