In the ORACLE-Mode there is a problem to call function and procedure in packages.

Generate the samples

SET SESSION sql_mode=ORACLE;

use temp;

delimiter //

create or replace package PCK_TEST as

  procedure FUN_TEST();

end;

//

delimiter //

create or replace package body PCK_TEST as

  procedure FUN_TEST() as

  begin

    select 'test-function';

  end;  

end;

//

delimiter ;

Following run correct:

use temp;

call pck_test.fun_test;

But when you call it with

use temp;

call temp.pck_test.fun_test;

then came the error:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '.fun_test' at line 1

create is this problem when you are in an other Schema

use test;

call temp.pck_test.fun_test;

There I get the same error.

I "quick and dirty" solution is:
Generate a normal function or procedure e.g. "prc_test" in the shema "temp" and in this is the call-statement "call pck_test.fun_test;". Then you can call in the Schema "test" the Function/Procedure "prc_test" in the schema "temp".

use temp;

delimiter //

create procedure prc_test() as

begin

  call pck_test.fun_test();

end;

//

delimiter ;

use test;

call temp.prc_test;