i got this error when i added membership someone can help i use delta

Code:
misc.java:144: incompatible types
found   : java.lang.Object[]
required: Object[]
        Object objs[] = argsList.toArray();
                                        ^
misc.java:148: inconvertible types
found   : Object
required: java.lang.String
            args[j] = (String)objs[j];
                                  ^
Note: EconomyReset.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: misc.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
2 errors