Importing world issue. session.lock. Have already tried deleting

[01:28:19] [ServerMain/INFO]: Building unoptimized datafixer
[01:28:20] [ServerMain/INFO]: Environment: authHost=‘https:/ /authserver.mojang.com’, accountsHost=‘https:/ /api.mojang. com’, sessionHost=‘https:/ /sessionserver.mojang.com’, servicesHost=‘https:/ /api.minecraftservices. com’, name=‘PROD’
[01:28:20] [ServerMain/ERROR]: Failed to start the minecraft server
java.nio.file.AccessDeniedException: ./world/session.lock
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:90) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:298) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:357) ~[?:?]
at ani.a(SourceFile:34) ~[server-1.19.3.jar:?]
at dve$c.(SourceFile:349) ~[server-1.19.3.jar:?]
at dve.c(SourceFile:337) ~[server-1.19.3.jar:?]
at net.minecraft.server.Main.main(SourceFile:126) ~[server-1.19.3.jar:?]
at net.minecraft.bundler.Main.lambda$run$0(Main.java:54) ~[?:?]
at java.lang.Thread.run(Thread.java:831) ~[?:?]

[01:40:10] [ServerMain/INFO]: Building unoptimized datafixer
[01:40:11] [ServerMain/INFO]: Environment: authHost=‘https ://authserver.mojang.com’, accountsHost=‘https ://api.mojang.com’, sessionHost=‘https ://sessionserver.mojang.com’, servicesHost=‘https ://api.minecraftservices.com’, name=‘PROD’
[01:40:11] [ServerMain/ERROR]: Failed to start the minecraft server
java.nio.file.AccessDeniedException: ./world/session.lock
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:90) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106) ~[?:?]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111) ~[?:?]
at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:298) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:357) ~[?:?]
at ani.a(SourceFile:34) ~[server-1.19.3.jar:?]
at dve$c.(SourceFile:349) ~[server-1.19.3.jar:?]
at dve.c(SourceFile:337) ~[server-1.19.3.jar:?]
at net.minecraft.server.Main.main(SourceFile:126) ~[server-1.19.3.jar:?]
at net.minecraft.bundler.Main.lambda$run$0(Main.java:54) ~[?:?]
at java.lang.Thread.run(Thread.java:831) ~[?:?]

Have already tried deleting session.lock. Still doesn’t work. Your help would be most appreciated. Thank you.