Perguntas Erro em SQL

Galera bom dia.

Tenho uma SQL que funciona normal, porém, de vez enquando ela dá um erro no Protheus na hora que vamos gerar o relatório.

Error : 604 - ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-01000: maximum open cursors exceeded

Este relatório é usado na Inspeção de Processo no Protheus.

SELECT QPR.QPR_FILIAL,QPR.QPR_OP,QPR.QPR_LOTE,QPR.QPR_NUMSER,QPR.QPR_ROTEIR,QPR.QPR_OPERAC,QPR.QPR_LABOR,QPR.QPR_ENSAIO,QPR.QPR_DTMEDI,QPR.QPR_HRMEDI,QPR.QPR_AMOSTR,QPR.QPR_ENSR,QPS.QPS_INDMED,QPS.QPS_MEDICA,QPR.QPR_RESULT,QPR.QPR_DTINI,QPR.QPR_HRINI,QPR.QPR_DTFIM,QPR.QPR_HRFIM,QPR.QPR_METODO,QPR.QPR_RVDOC,QPR.QPR_CHAVE,QPR.QPR_FILMAT,'QPS' AS TABELA,QPR.R_E_C_N_O_ FROM QPR010 QPR , QPS010 QPS WHERE QPR.QPR_FILIAL = '0101' AND QPR.QPR_OP = '02399001001 ' AND QPR.QPR_LOTE = '14079100A ' AND QPR.QPR_NUMSER = ' ' AND QPR.QPR_ROTEIR = '01' AND QPR.QPR_OPERAC = '06' AND QPR.QPR_LABOR = 'LABFQ ' AND QPR.QPR_ENSAIO = '000006 ' AND QPR.QPR_FILIAL = QPS.QPS_FILIAL AND QPS.QPS_CODMED = QPR.QPR_CHAVE AND QPS.D_E_L_E_T_= ' ' AND QPR.D_E_L_E_T_= ' ' ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

Alguém poderia me dar uma luz no erro acima ?

Obrigado.

Clístenis

SELECT QPR.QPR_FILIAL,QPR.QPR_OP,QPR.QPR_LOTE,QPR.QPR_NUMSER,QPR.QPR_ROTEIR,QPR.QPR_OPERAC,QPR.QPR_LABOR,QPR.QPR_ENSAIO,QPR.QPR_DTMEDI,QPR.QPR_HRMEDI,QPR.QPR_AMOSTR,QPR.QPR_ENSR,QPS.QPS_INDMED,QPS.QPS_MEDICA,QPR.QPR_RESULT,QPR.QPR_DTINI,QPR.QPR_HRINI,QPR.QPR_DTFIM,QPR.QPR_HRFIM,QPR.QPR_METODO,QPR.QPR_RVDOC,QPR.QPR_CHAVE,QPR.QPR_FILMAT,'QPS' AS TABELA,QPR.R_E_C_N_O_ FROM QPR010 QPR WHERE QPR.QPR_FILIAL = '0101' AND QPR.QPR_OP = '02399001001 ' AND QPR.QPR_LOTE = '14079100A ' AND QPR.QPR_NUMSER = ' ' AND QPR.QPR_ROTEIR = '01' AND QPR.QPR_OPERAC = '06' AND QPR.QPR_LABOR = 'LABFQ ' AND QPR.QPR_ENSAIO = '000006 ' AND QPR.QPR_FILIAL = QPS.QPS_FILIAL AND QPS.QPS_CODMED = QPR.QPR_CHAVE AND QPS.D_E_L_E_T_= ' ' AND QPR.D_E_L_E_T_= ' ' ORDER BY 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 NOLOCK

Verifique se funciona.