After cert delete, can't create new cert

As an addendum, here's the appropriate sections from the apache logs.

From other_vhosts_access.log:

127.0.0.1:80 54.189.22.122 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/4YFLDjiOzWtjKez6u2MpDiDKTvSt-danB9qfqghQGCM HTTP/1.1" 404 456 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
127.0.0.1:80 64.78.149.164 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/CMKIf_VWRGvRzsrere1GaAJcddkwicgc--BkMY6MVvU HTTP/1.1" 404 452 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
127.0.0.1:80 18.116.86.117 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/CMKIf_VWRGvRzsrere1GaAJcddkwicgc--BkMY6MVvU HTTP/1.1" 404 452 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
127.0.0.1:80 3.142.122.14 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/4YFLDjiOzWtjKez6u2MpDiDKTvSt-danB9qfqghQGCM HTTP/1.1" 404 456 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
127.0.0.1:80 64.78.149.164 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/4YFLDjiOzWtjKez6u2MpDiDKTvSt-danB9qfqghQGCM HTTP/1.1" 404 456 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"
127.0.0.1:80 18.197.97.115 - - [12/Jun/2021:23:03:26 +0000] "GET /.well-known/acme-challenge/4YFLDjiOzWtjKez6u2MpDiDKTvSt-danB9qfqghQGCM HTTP/1.1" 404 456 "-" "Mozilla/5.0 (compatible; Let's Encrypt validation server; +https://www.letsencrypt.org)"

From error.log:

[Sat Jun 12 23:03:23.083775 2021] [mpm_prefork:notice] [pid 878872] AH00171: Graceful restart requested, doing restart
[Sat Jun 12 23:03:23.221310 2021] [mpm_prefork:notice] [pid 878872] AH00163: Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1j configured -- resuming normal operations
[Sat Jun 12 23:03:23.221351 2021] [core:notice] [pid 878872] AH00094: Command line: '/usr/sbin/apache2'
[Sat Jun 12 23:03:27.592804 2021] [mpm_prefork:notice] [pid 878872] AH00171: Graceful restart requested, doing restart
[Sat Jun 12 23:03:27.736698 2021] [mpm_prefork:notice] [pid 878872] AH00163: Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1j configured -- resuming normal operations
[Sat Jun 12 23:03:27.736723 2021] [core:notice] [pid 878872] AH00094: Command line: '/usr/sbin/apache2'
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