ATLANTA — With a rookie pitcher on the mound, the Atlanta Braves weren’t nearly good enough to overcome three errors by their rookie third baseman. Adonis Garcia’s defensive miscues led to four unearned runs for the Colorado Rockies, who snapped a four-game losing streak with a 5-1 victory over the Braves on Tuesday night. Mike Foltynewicz (4-6) went five innings but could not pitch around Garcia’s first two errors, which contributed to two runs in the first and two more in the fourth.