WCS8 Solr Preprocess failed : Error SQLCODE=-601, SQLSTATE=42710, SQLERRMC=WCSSTGAP.XI_CATENTRY_PRICE_0
The -601 happens because table WCSSTGAP.XI_CATENTRY_PRICE_0 already exists , so it cannot be created again while it exists. 

Either drop that table manually and retry, or check back in the log file(s) to find if a previous DROP TABLE WCSSTGAP.XI_CATENTRY_PRICE_0  did fail (and then solve that problem first). You will need to find root cause.