oracle goldengate replication

Please I need help. Actually i am working on oracle 19c to perform a data base replication using the goldengate. I created two data bases (source and destination) the 3 processes (extract, pump and replicat) are running well, but when i insert datas in one data base for it to replicat in the other it's not replicating. Here is the link of the tutorial i used. https://googleweblight.com/i?u=https%3A%2F%2Fmedium.com%2F%40madhukaudantha%2Fsetting-up-oracle-goldengate-12-9d9546a538d6&geid=NSTN&hl=en-US this are the warning from the log file: 2021-08-30T05:52:38.284+0100 WARNING OGG-01877 Oracle GoldenGate Manager for Oracle, MGR.prm: Missing explicit accessrule for server collector. 2021-08-30T05:54:01.811+0100 WARNING OGG-01842 Oracle GoldenGate Capture for Oracle, EXTRACT.prm: CACHESIZE PER DYNAMIC DETERMINATION (7.66G) LESS THAN RECOMMENDED: 64G (64bit system) vm found: 11.66G Check swap space. Recommended swap/extract: 128G (64bit system). 2021-08-30T05:54:01.811+0100 INFO OGG-01639 Oracle GoldenGate Capture for Oracle, EXTRACT.prm: BOUNDED RECOVERY: ACTIVE: for object pool 1: p11804_extr. 2021-08-30T07:48:02.156+0100 WARNING OGG-00938 Oracle GoldenGate Manager for Oracle, MGR.prm: Manager is stopping at user request.