sample-apps/rds-mysql - Cannot find version 5.7.26 for mysql

[yalbordy]

failed at 3-deploy-vpc.sh

rds-mysql % ./3-deploy-vpc.sh

error is
"Cannot find version 5.7.26 for mysql"

[yalbordy]

error when call rds-mysql/5-create-dbtable.sh too

rds-mysql % ./5-create-dbtable.sh

Invalid base64: "{
"query": "CREATE TABLE test ( id varchar(255), title varchar(255), timestamp BIGINT, entries varchar(32765));"
}"