How to Solve the Crash Caused by Upload File Interruption?

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How to Solve the Crash Caused by Upload File Interruption?
Occasionally, it's hard to reproduce the problem.

[fileserver.c:288][process_upload_data]No filename, aborting upload

Program terminated with signal 6, Aborted.
#0 0x00007feffd9c70d5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007feffd9c70d5 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007feffd9ca7c0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00000000004c8523 in sig_exit ()
#3
#4 0x00007feffda27227 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000455e28 in ahc_echo ()
#6 0x000000000045c6e9 in call_connection_handler (connection=0x7fefbc005d60) at connection.c:1354
#7 0x000000000045d648 in MHD_connection_handle_idle (connection=0x7fefbc005d60) at connection.c:2271
#8 0x00000000004604c6 in MHD_handle_connection (data=0x7fefbc005d60) at daemon.c:694
#9 0x00007feffe8a7e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007feffda8438d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()