This is a likely typo for (il-Malta in Maltese). A search for "Jesus Christ Superstar Malta PDF" does return relevant results, including a 1995 theater program for a production of the rock opera in Malta (called "Jesus Christ superstar live bil-Malti"). This suggests you might be looking for a local or regional edition.
If you are looking for a reliable full orchestral score for review or performance, consider these official versions: This is a likely typo for (il-Malta in Maltese)
The safest and most reliable way to obtain the Jesus Christ Superstar full orchestral score, including the conductor's score, is through official licensing partners. including the conductor's score