Index: trunk/psModules/src/objects/pmPSFtryFitPSF.c
===================================================================
--- trunk/psModules/src/objects/pmPSFtryFitPSF.c	(revision 36633)
+++ trunk/psModules/src/objects/pmPSFtryFitPSF.c	(revision 36658)
@@ -125,4 +125,5 @@
 
     if (Npsf == 0) {
+#if 0
 	// DEBUG code: save the PSF model fit data in detail
 
@@ -143,4 +144,6 @@
 
 	    pmSource *source = psfTry->sources->data[i];
+
+            if (!source->modelPSF) continue;
 
 	    float par7 = (source->modelPSF->params->n == 7) ? -100 : source->modelPSF->params->data.F32[PM_PAR_7];
@@ -155,5 +158,5 @@
 	}
 	fclose (f);
-
+#endif
 	psError(PS_ERR_UNKNOWN, false, "No sources with good PSF fits after model is built.");
 	return false;