我已经尝试运行这个命令几天了，但没有成功。

train> SELECT i.bill_cyc_cd, i.store_cd,
  2    SUM(CASE WHEN p.past_due_tp# > 0 AND p.past_due_tp# <= 4 THEN i.sch_pmt_amt ELSE 0 END) AS sch_pmt_amt,
  c.fname, c.lname, c.home_phone
FROM inst_cntr i
JOIN cntr$past_due_tp p ON i.cust_cd = p.cust_cd AND i.cntr_cd = p.cntr_cd
JOIN cust c ON i.cust_cd = c.cust_cd
WHERE i.bill_cyc_cd IN ('300', '150', '015', '030', '922', '921', '920')
  AND p.past_due_tp# > 0 AND p.past_due_tp# <= 4
  AND EXISTS (SELECT 1 FROM cntr$past_due_tp pd WHERE pd.cust_cd = i.cust_cd AND pd.cntr_cd = i.cntr_cd AND pd.past_due_tp# > 0 AND pd.past_due_tp# <= 4 AND pd.past_due_tp# IS NOT NULL)
GROUP BY i.bill_cyc_cd, i.store_cd, c.fname, c.lname, c.home_phone;
  3    4    5    6    7    8    9   10  JOIN cntr$past_due_tp p ON i.cust_cd = p.cust_cd AND i.cntr_cd = p.cntr_cd
*
ERROR at line 5:
ORA-00933: SQL command not properly ended

您可以在底部看到我遇到的错误。
我尝试以不同的方式格式化join命令，但无法使其工作，因为它看起来是正确的。